# Faculty 2007 Travel and Talks

## January 2007

Marcelo Aguiar

Invited to spend one month at Université de Marne-la-Vallée, France. Working in collaboration with Jean-Christophe Novelli and Jean-Yves Thibon, January 15-February 15, 2007.G. Donald Allen

Invited presentation, TexMATYC Section of the TCCTA Annual Meeting, Austin, TX, January 23-24, 2007.Wolfgang Bangerth

Colloquium, Institute for Computational and Applied Mathematics (ICES), University of Texas at Austin, January 2007.Andrew Comech

Colloquium, Universität Potsdam–Institut für Mathematik, Seminar "Partielle Differentialgleichungen," January 10, 2007.Richard Ewing

Talk, "Coupled nonlinear processes in subsurface modeling," Computational Subsurface Sciences Workshop, Washington, DC, January 10, 2007.Sue Geller

Moderator and Panelist, Ethics in the Mathematical Science, Joint Mathematics Meetings, New Orleans, January 5, 2007.Rostislav Grigorchuk

Invited 50 minute talk, "Discrete amenable groups—a survey," Amenability of Groups and Algebras, Canberra, Australia , January 2007.Invited 50 minute talk, "The spectra of Schreier graphs of self-similar groups and dynamics of multidimensional rational mappings 1 and 2, partial differential equations: analysis, applications, and inverse problems," Copthorne Waitangi Resort, New Zealand, January 2007.

Jean-Luc Guermond

"Finite-element-based Faedo-Galerkin weak solutions to the Navier–Stokes equations with Dirichlet boundary conditions are suitable," 113th Annual Meeting of the American Mathematical Society (AMS), New Orleans, January 5-8, 2007.William Johnson

Invited address, Geometric and Functional Analysis Seminar, Tel Aviv, January 2007.Peter Kuchment

50 min. Invited Lecture, "On representations of solutions of periodic elliptic equations on abelian coverings," International Conference on Partial Differential Equations and Spectral Theory. Dedicated to the 85th birthday of S. Agmon, Hebrew University, Jerusalem, Israel, January 28-February 2, 2007.Series of four 60 min. invited lectures, "Analysis on graphs and its applications," Introduction to Quantum Graphs, Workshop, Newton Institute and London Math. Soc., Gregynog, Wales, UK, January 2007.

Joseph Landsberg

Working geometry seminar, "Lines on projective varieties and minimal degree rational curves," TAMU, January 16, 2007.Working Geometry Seminar, "Introduction to lines on projective varieties and minimal degree rational curves," TAMU, January 19, 2007.

Working Geometry Seminar, "Lines on homogeneous varieties," TAMU, January 26, 2007.

David Larson

20 min. Session, American Mathematical Society, Special Session on Frames and Wavelets in Harmonic Analysis, Geometry and Applications, New Orleans, January 2007.Matthew Papanikolas

20 min. Invited talk, "Galois groups of difference equations and algebraic relations among periods of Drinfeld modules," American Mathematical Society, Special Session on Arithmetic of Function Fields, New Orleans, LA, January 2007.William Rundell

Principal speaker, Workshop on Shape Reconstruction and Integral Equations, Göttingen, January 2007.Jaydeb Sarkar

Linear Analysis Seminar, "Commuting tuple and a theory of Sz.-Nagy and Foias," TAMU, January 19, 2007.Henry Schenck

20 min. Invited talk, "A spectral sequence stratification of cohomology jump loci," AMS Special Session on Configurations and Arrangements, New Orleans, LA, January 2007.20 min. Invited talk, "Toric surface codes and Minkowski sums," AMS Special Session on Computational Algebraic Geometry for Low-Dimensional Varieties, New Orleans, LA, January 2007.

Jane Schielack

Talk, "Implications of NCTM focal points for professional development," (with J. Rubillo and D. Clements), Department of Education's Mathematics and Science Partnerships Regional Conference, Phoenix, AZ, January 2007.Talk, "Curriculum focal points," (with J. Rubillo and D. Clements), Department of Education's Mathematics and Science Partnerships Regional Conference, Phoenix, AZ, January 2007.

Frank Sottile

10-minute Speedmath talk, AMS Session on Algebra and Number Theory, AMS National Meeting, New Orleans, January 6, 2007.Colloquium, UNC-Chapel Hill, January 11, 2007.

Seminar talk, UNC-Chapel Hill, January 12, 2007.

Peter Stiller

Invited paper and speaker, "Mathematical aspects of shape analysis for object recognition," Electronic Imaging, Visual Communications and Image Processing, The Mathematics of Imaging, San Jose, CA, January 30-February 1, 2007.Invited Speaker and Session Chair, "Recognizing point configurations in full perspective," Surface Analysis and Reconstruction, Electronic Imaging, Vision Geometry XV, San Jose, CA, January 30-February 1, 2007.

Zoran Sunik

60 min. talk, "Analysis on graphs and its applications," Isaac Newton Institute of Mathematics, Cambridge, United Kingdom, January 2007.30 min. talk, "Geometric linearization of graphs and groups," Lausanne, Switzerland, January 2007.

Research visit, Isaac Newton Institute for Mathematical Sciences, Cambridge, England, 3 weeks, January 2007.

Jay Walton

Invited participant in week long MBI Workshop on Modeling the Microvasculature at the Ohio State University, January 22-26, 2007.Philip Yasskin

Talk, "Maplets for calculus - now with proofs," (with D. Meade and Mika Seppala), Joint Mathematics Meeting, Session on Mathlets for Teaching and Learning Mathematics, New Orleans, January 2007.Talk, "Multilingual maplets for WebALT calculus," (with D. Meade and Mika Seppala), Joint Mathematics Meeting, Session on Mathlets for Teaching and Learning Mathematics, New Orleans, January 2007.

30 min. Invited demo on display floor, "Math on the Web: Maplets for calculus," (with D. Meade), Joint Mathematics Meeting, New Orleans, January 2007.

15 min. Invited talk, SEE-Math - Summer Educational Enrichment Program, Texas A&M for Middle School Students, Joint Mathematics Meeting, Special Session on Math Circles and Similar Programs for Students and Teachers, San Antonio, January 5, 2007.

Matthew Young

Colloquium talk, Vanderbilt University, January 2007.Jianxin Zhou

A 1 hour talk and a 1 hour numerical demo, "A local approach for computing multiple solutions," The Workshop on Theoretical and Computational Nonlinear Partial Differential Equations, Mexico City, Mexico, January 9-13, 2007.

## February 2007

Marcelo Aguiar

Séminaire, "Algèbre et Topologie," Institut de Recherche Mathématique Avancée de Strasbourg, France, February 13, 2007.Séminaire Combinatoire, Informatique et Physique, Université Paris 13, February 16, 2007.

Séminaire, d'Algèbre et Topologie, Laboratoire J. A. Dieudonné, Université de Nice Sophia-Antipolis, France, February 19, 2007.

G. Donald Allen

Presentation, "Using and validating a triadic instrument to survey pre-service teacher preferences," (with Dianne Goldsby), 2007 Annual Meeting of the Southwest Educational Research Association (SERA), San Antonio, TX, February 7-10, 2007.Invited presentation, "Old technology and new technology, why it works," ICTCM, (International Conference on Technology in Collegiate Mathematics), Boston, MA, February 15-18, 2007.

Presentation, "The triadic survey in building capacity," (with Dianne Goldsby), 7th Annual Texas A&M University Assessment Conference, College Station, TX, February 22-23, 2007.

Invited presentation, "Focus on college algebra," TexMATYC Section of the TCCTA Annual Meeting, Austin, TX, February 23-24, 2007.

Presentation, "The college algebra survey," TexMATYC, Texas Association of Two Year Colleges, Arboretun Renaissance Hotel, Austin TX, February 24, 2007.

Wolfgang Bangerth

Invited presentation (30 min.), SIAM Conference on Computational Science and Engineering, Costa Mesa, CA, February 2007.Goong Chen

Invited 20 min. talk, "Quantum-number D-scaling for the excited states of helium," joint PRISM-TAMU Winter Symposium on Physics and Material Science, Princeton University, Princeton, NJ, February 2007.Andrew Comech

Mathematical Physics and Harmonic Analysis Seminar, "Global attraction to solitary waves for the Klein-Gordon field coupled to finitely many nonlinear oscillators," Texas A&M University, February 16, 2007.Prabir Daripa

15 min. talk, "On multi-phase flows," 2007 SIAM Conf. on Comp. Sci. & Engg., Costa Mesa, CA, February 19-23, 2007.15 min. talk, "Fast and accurate methods with domain embedding," 2007 SIAM Conf. on Comp. Sci. & Engrg., Costa Mesa, CA, February 19-23, 2007.

Yalchin Efendiev

Colloquium, Chevron, February 2007.Richard Ewing

Colloquium, CONACyT, Mexico City, Mexico, February 9, 2007.Stephen Fulling

Colloquium, University of Sussex, Physics Dept., February 2007.Colloquium, Newton Institute, University of Cambridge, February 2007.

Rostislav Grigorchuk

Invited 30 min. talk, "On classification of groups generated by finite automata and some questions of analysis related to such groups," Winter School on Methods of Algebra and Analysis in Contemporary Mathematics, Chernivtsi, Ukraine, February 2007.Invited hour talk, "Amenability, branchness and Hanoi towers game," Meeting of Kyiv Mathematical Society, Kyiv, Ukraine, February 2007.

Conference organizer, Winter School on Methods of Algebra and Analysis in Contemporary Mathematics, Chernivtsi, Ukraine, February 2007.

Guido Kanschat

Colloquium, University of Texas, Austin, February 2007.Colloquium, Rice University, Houston, February 2007.

Peter Kuchment

Colloquium, "Liouville theorems for periodic equations on abelian coverings," Isaac Institute for Math. Sciences, Cambridge, UK, February 2007.Joseph Landsberg

Working Geometry Seminar, "Proof of Debarre-de Jong conjecture?" TAMU, February 6, 2007.David Larson

Colloquium, University of Central Florida, February 2007.Volodymyr Nekrashevych

Groups and Dynamics Seminar, "Limit spaces and C*-algebras," TAMU, February 7, 2007.Linear Analysis Seminar, "C*-algebras and iterated monodromy groups," TAMU, February 16, 2007.

Invited hour talk, Groups 2007, "Hyperbolicity and convergence groups," Luminy, France, February 19-23, 2007.

Working Geometry Seminar, "Rational curves and their deformations," TAMU, February 23, 2007.

Matthew Papanikolas

Number Theory Seminar, "Galois groups of difference equations and periods of Drinfeld modules," Ohio State University, Columbus, OH, February 2007.Gilles Pisier

Colloquium, University of Rennes, France, February 2007.Maurice Rojas

GSO talk, "From primes to nullstellensatze to P=NP," TAMU, February 22, 2007.Jane Schielack

Talk, "Curriculum focal points, essential understandings-new directions for curriculum, teaching, and assessment," (with R. Charles), Eighth Annual Mathematics Leadership Conference, Chicago, IL, February 2007.Talk, "Math update: improving math education," (with S. Kress and J. Rodriquez), Pearson Education National Policy Forum 19th Annual Meeting, Phoenix, AZ, February 2007.

Talk, "Curriculum focal points: a quest for coherence," (with F. Fennell), K-12 Mathematics National Conference, Arlington, VA, February 2007.

Talk, "Implications of NCTM focal points for evaluation programs," (with S. Beckman, and D. Clements), Department of Education's Mathematics and Science Partnerships Regional Conference, Dallas, TX, February 2007.

Talk, "Curriculum focal points," (with S. Beckmann and D. Clements), Department of Education's Mathematics and Science Partnerships Regional Conference, Dallas, TX, February 2007.

Talk, "Curriculum focal points," South Texas Rural Systemic Initiative (STRSI) Administrator's Conference, Corpus Christi, TX, February 2007 .

Frank Sottile

Seminar talk, University of Texas, February 8, 2007.Peter Stiller

Speaker, "Vector bundles on projective space," Working Geometry Seminar, Texas A&M University, February 27, 2007.Zoran Sunik

Algebra Seminar, Georgia Institute of Technology, Atlanta, GA, February 2007.Algebraic Geometry/Ergodic Theory Seminar, Rice University, Houston, TX, February 2007.

Number Theory Seminar, "Frobenius problem and dead ends in integers," TAMU, February 14, 2007.

Yaroslav Vorobets

Seminar talk, "Closed geodesics on translation surfaces," Rice University, Houston, TX, February 13, 2007.Catherine Yan

Graduate Student Seminar, Texas A&M University, February 2007.GSO talk, "Linked partitions and linked cycles," TAMU, February 8, 2007.

Philip Yasskin

Invited 30 min. talk, "Maplets for calculus and WebALT partner on applets," e+Calculus JEM Workshop 1, Lisbon, Portugal, February 10, 2007.Matthew Young

Colloquium talk, University of Missouri, February 2007.Colloquium talk, Georgia Tech University, February 2007.

Colloquium talk, Texas A&M University, February 2007.

## March 2007

Marcelo Aguiar

Two 1 hour lectures, Workshop Hopf algebras and Props, Clay Mathematics Institute, Boston, March 5-9, 2007.G. Donald Allen

Keynote Address, "Technology usage in the college algebra course," The Enhanced WebAssign (EWA) Teaching & Learning Workshop, Thomson Publishing, San Diego, CA, March 17, 2007.Michael Anshelevich

Invited 45 min. talk, "Free probability and large*N*limit," UC Berkeley, CA, March 2007.Gregory Berkolaiko

Colloquium, University of Bristol, March 2007.Colloquium, Isaac Newton Institute, Cambridge, March 2007.

Colloquium, University of Nottingham, March 2007.

Harold Boas

20 min. Special Session, American Mathematical Society, Special Session on PDE Methods in Several Complex Variables, Miami University, Oxford, Ohio, March 17, 2007.Goong Chen

50 min. Invited talk, "Analysis of spectrum of a chaotic time series," The First Doha Conference on Applied Mathematics and Computational Science, Doha, Qatar, March 2007.Invited 1 hour Seminar, "On English technical writing," Dept. of Bio-Industrial Mechantronics Engineering, National Taiwan University, Taipei, Taiwan, March 2007.

Invited Professor, Institute of Mathematics, Academia Sinica, Taipei, Taiwan, March 15-April 14, 2007.

Eight 90 min. Lecture Series (about 25-40 people attended), "Introduction to quantum computing and devices." During my March-April 2007 visit at the Institute of Mathematics, Academia Sinica, Taipei, Taiwan.

Ronald Douglas

Colloquium, Mathematics Department, University of British Columbia, March 2007.Kenneth Dykema

45 min. Talk, "Free entropy dimension in amalgamated free products, free probability and large N limit," UC-Berkeley, March 2007.50 min. Colloquium, "Free probability and free entropy dimension," Vanderbilt University Nashville, TN, March 2007.

Yalchin Efendiev

Invited talk, Workshop on the Theory of Highly Oscillatory Problems, Newton Institute, March 26-30, 2007.Organized 3 mini-sessions (joint with L. Durlofsky), SIAM Geoscience, Santa Fe, NM, March 2007.

Two 25 min. talks, SIAM Geoscience, Santa Fe, NM, March 2007.

Stephen Fulling

Colloquium, University of York, Physics Dept., March 2007.Jean-Luc Guermond

Invited talk (Keynote Speaker), "Finite-element-based Faedo-Galerkin weak solutions to the Navier--Stokes equations with Dirichlet boundary conditions are suitable," 14th International Conference on Finite Elements in Flow Problems, Santa Fe, March 26-28, 2007.Keynote Speaker (with Bojan Poppov), "Survey of nonlinear approximation of PDE's in L

^{1}," 14th International Conference on Finite Elements in Flow Problems, Santa Fe, March 26-28, 2007.Colloquium, SANDIA National Lab, Albuquerque, NM, March 29, 2007.

Peter Howard

30 min. Contributed talk, Texas PDE 2007, March 24-25, 2007.Guido Kanschat

20 min. Minisymposium, Finite Elements in Fluids, Santa Fe, March 2007.Peter Kuchment

Colloquium, "Thermoacoustic tomography, circular radon transform, and the wave equation," Hariet-Watts Univ., Edinburgh, March 2007.Joseph Landsberg

Invited hour talk, Texas Geometry and Topology Conference, Texas Christian University, Ft. Worth, TX, March 2007.Fran Narcowich

Half hour talk, "A Bernstein theorem for spherical basis functions," 12th International Conference on Approximation Theory, San Antonio, TX, March 4-8, 2007.Half hour talk, "Divergence-free radial basis functions on the sphere," Special Session on Radial Basis Functions on the Sphere for Geophysical Applications, SIAM Conference on Mathematical & Computational Issues in the Geosciences, Switzerland, Santa Fe, NM, March 19-22, 2007.

Volodymyr Nekrashevych

Seminar, SUNY Stony Brook, March 2007.Matthew Papanikolas

Co-organizer (with F. Rodriguez-Villegas, D. Savitt, W. Stein, and D. Thakur), Arizona Winter School on p-adic Geometry, University of Arizona, Tucson, AZ, March 2007.Joseph Pasciak

20 min. talk, "The computation of resonances in open systems using a perfectly matched layer," The Texas Finite Element Rodeo, Houston, March 2007.Colloquium, "The computation of resonances in open systems using a perfectly matched layer," The University of Utah, March 2007.

Guergana Petrova

20 min. Conference talk, "Anisotropic smoothness spaces via level sets," 12th International Conference in Approximation Theory, San Antonio, Texas, March 4-8, 2007.Michael Pilant

Organizer of the Second Annual Doha Conference on Applied Mathematics and Computational Science, Texas A&M University at Qatar, Doha, Qatar, March 30-April 1, 2007.Alexei Poltoratski

One of 3 main speakers, South Eastern Analysis Meeting, University of Richmond, March 2007.Talk, Rice University, March 2007.

Bojan Popov

30 minute talk, 12th International Conference on Approximation Theory, AT2007, San Antonio, Texas, March 2007.J. Maurice Rojas

Geometry Seminar, "The complete fewnomial conjecture," Courant Institute of Mathematical Sciences, New York University, March 20, 2007.Invited series of 3 talks, "Large chambers, discrimiants, and fewnomials," Johns Hopkins University, March 21, 22, 27, 2007.

Jane Schielack

Talk, "NCTM's curriculum focal points: what are they? how will they be used?" (with F. Fennell, C. Seeley, S. Beckman, R. Charles, D. Clements, E. Trevino, and R. M. Zbiek), National Council of Supervisors of Mathematics, Atlanta, GA, March 2007.Talk, "Curriculum focal points," (with F. Fennell and J. Rubillo), Ohio Mathematics Leadership Council Meeting, Columbus, OH, March 2007.

Thomas Schlumprecht

Colloquium, Czech Academy of Sciences, Prague, March 2007.Frank Sottile

Co-organizer (with J. Carrell), Workshop on Schubert Calculus and Schubert Geometry, Banff International Research Station, Banff, Alberta, Canada, March 18-23, 2007.Peter Stiller

Invited Participant and Speaker, "Algebraic geometry, shape, and understanding configurations from projections to lower dimensions with applications to object recognition and image understanding," New Directions in Complex Data Analysis for Emerging Applications (NSF/AFOSR), Breckenridge, CO, March 4-7, 2007.Emil Straube

Invited Address (50 min.), AMS Meeting, Oxford, Ohio, March 16-17, 2007.Organizer (with Jeff McNeal) of Special Session on PDE Methods in Several Complex Variables at AMS meeting, Oxford, Ohio, March 16-17, 2007.

Zoran Sunik

20 min. talk, Zassenhaus Group Theory Conference, St Louis, MO, March 2007.20 min. talk, American Mathematical Society Special Session on Combinatorial and Geometric Group Theory, Oxford, OH, March 2007.

Joe Ward

Invited Plenary hour talk, "Direct and inverse theorems for RBF-type functions: implications and applications," 12 International Conference on Approximation Theory, San Antonio, TX, March 4-8, 2007.Philip Yasskin

Undergraduate Seminar, "Euler numbers," March 26, 2007.Matthew Young

Invited hour talk, Texas A&M Number Theory Seminar, March 2007.

## April 2007

Marcelo Aguiar

Invited talk, "Differential algebra and related topics II," Rutgers University Newark, April 12-13, 2007.Wolfgang Bangerth

Invited presentation (25 min.), IEEE International Symposium on Biomedical Imaging (ISBI), Arlington, VA, April 2007.Gregory Berkolaiko

1 hour talk, "A lower bound for nodal count on discrete and metric graphs," An Isaac Newton Institute Workshop Quantum Graphs, their Spectra and Applications, April 2-5, 2007.Goong Chen

Invited 1 hour Distinguished Lecture, "Atoms, molecules and the Schrödinger equation," Department of Mathematics, University of Texas-Pan American, Edinburg, Texas, April 27, 2007.Andrew Comech

Analysis Seminar, University of North Carolina at Charlotte, April 18, 2007.Ronald Douglas

Colloquium, Mathematics Department, Kansas State University, April 2007.After Dinner Speech, Friends of Mathematics, Kansas State University, April 2007.

Kenneth Dykema

Analysis Seminar (60 min.) "Free entropy dimension in amalgamated free products," SUNY, Buffalo, April 2007.Yalchin Efendiev

Invited talk, LMS-EPSRC Short Course, University of Warwick, UK, April 15-20, 2007.Invited talk, Upscaling Workshop, University of Bergen and CIPR, Bergen, Norway, April 20-22, 2007.

Stephen Fulling

Invited 50 min. talk, Workshop on Quantum Graphs, their Spectra and Applications, Newton Institute, Cambridge, England, April 2007.William Johnson

Invited Participant, "Geometry and algorithms," Edinburgh, Scotland, April 2007.Joseph Landsberg

Invited hour talk, Workshop on Complexity, Coding, and Communication, IMA, Minneapolis, MN, April 2007.Geometry Seminar, UT Austin, April 2007.

Paulo Lima-Filho

Colloquium, University of Chicago, April 2007.Volodymyr Nekrashevych

20 min. talk, Special Session on Operator Algebras, AMS Western Section Meeting, Tucson, AZ, April 21-22, 2007.Matthew Papanikolas

Colloquium, "Hypergeometric functions over finite fields, counting points, and modular forms," Iowa State University, Ames, IA, April 2007.Joseph Pasciak

Colloquium, "The computation of resonances in open systems using a perfectly matched layer," The University of Deleware, April 2007.Alexei Poltoratski

Talk, Michigan State University, April 2007.Bojan Popov

Seminar, "Nonoscillatory central schemes on unstructured meshes and applications," ExxonMobil Upstream Research Company, Houston, Texas, April 2007.J. Maurice Rojas

Co-organizer (with Peter Burgisser (U Paderborn), Joachim Rosenthal (ETH), and Madhu Sudan (MIT)), Workshop on Complexity, Coding, and Communication, fully funded workshop at the Institute for Mathematics and its Applications, April 16, 2007.Post Session on Complexity, "Toward Descartes' rule for complete fields and arbitrary codimension, coding, and communication," Institute for Mathematics and its Applications, Minnesota, April 16, 2007.

Talk, "A critical radius for low complexity," Workshop on Complexity, Coding, and Communication, Institute for Mathematics and its Applications, Minnesota, April 20, 2007.

Henry Schenck

Colloquium, UIUC, April 2007.Computational and Commutative Algebra Seminar, Cornell, April 2007.

Colloquium, University of Illinois Urbana-Champaign, April 2007.

Algebra Seminar, U. Texas, April 2007.

Jane Schielack

Talk, "Closing the expectation gap for mathematics," Commission for a College Ready Texas, Austin, TX, April 2007.Frank Sottile

Poster, IMA Workshop on Complexity, Coding, and Communications, April 16-20, 2007.Seminar talk, Institute for Mathematics and its Applications, April 4, 2007.

Seminar talk, University of Minnesota, April 6, 2007.

Seminar talk, University of Wisconsin, April 27, 2007.

Emil Straube

Invited Colloquium (50 min.), Dept. of Mathematics and Statistics, University of Missouri-Rolla, April 13, 2007.Invited Colloquium (50 min.), Dept. of Mathematics, Georgetown University, April 27, 2007.

Zoran Sunik

20 min. talk, American Mathematical Society Special Session on Languages and Groups, Hoboken, NJ, April 2007.Jay Walton

25 min. Special Sessions, "Strong ellipticity and the stability of finite strain deformations of anisotropic elastic bodies," Symposium on Flow and Deformation Processes in Porous Media, SIAM Conference on Geosciences, Santa Fe, NM, April 2007.Sarah Witherspoon

Colloquium, Sam Houston University, April 4, 2007.Catherine Yan

One hour Plenary talk, "Searching with errors and the liar games," Conference on Random Combinatorial Structures, University of Nebraska-Lincoln, April 20-22, 2007.Colloquium talk, Virginia L. Chatelain Memorial Lecture Series, in cooperation with the ADVANCED Distinguished Lecture Series, Kansas State University, April 3, 2007.

Algebra Seminar, Kansas State University, April 2007.

## May 2007

Marcelo Aguiar

Gave three 1 hour lectures, School of Combinatorial Hopf Algebras and Macdonald Polynomials, CRM, Montréal, May 1-4, 2007.Organizer of Workshop on Combinatorial Hopf Algebras and Macdonald Polynomials, Recent Advances in Combinatorics, CRM Thematic Semester, Montréal, (with F. Bergeron, N. Bergeron, M. Haiman, and S. Van Willigenburg), May 7-11, 2007.

G. Donald Allen

Invited, Texas Higher Education Coordinating Board, Conference on Course Redesign, Austin, TX, May 2, 2007.Reviewed, Department of Mathematics Graduate Program Self Study for Texas A&M University - Corpus Christi, May 9-11, 2007.

Keynote Address, "Multiple representations - a journey to the future," at the Aiming for Excellence in Mathematics Teacher Preparation, a seminar for teacher educators, Math TEKS Connections, College Station, TX, May 18-20, 2007.

Attended, MTC (Math TEKS Connections) Geometry Project Workshop, Austin, TX, May 22, 2007.

Attended, MSRI Workshop Critical Issues in Education: Teaching Teachers Mathematics, MSRI, Berkely, CA, May 30-June 1, 2007.

Gregory Berkolaiko

Workshop on Analysis on Graphs and Fractals, Cardiff, UK, May 29-June 2, 2007.Andrew Comech

Minicourse, "Global attraction to solitary waves in nonlinear dispersive Hamiltonian systems" (07frg137), Focused Research Workgroup, Banff International Research Station, Alberta, Canada, May 20-30, 2007.Ronald Douglas

Invited Lecture, AMS-MMS Meeting, Special Session on Operator Theory and Complex Analysis, May 2007.Stephen Fulling

Contributed 25 min. talk, Midwest Geometry Conference, Iowa City, May 2007.Rostislav Grigorchuk

Invited 50 min. talk, "The beginning of the Atlas of self-similar groups," Totally Disconnected Groups, Graphs and Geometry Workshop, Heinrich-Fabri-Institut Blaubeuren, Germany, May 2007.Invited 50 min. talk, "On Brian Hartley question about maximal subgroups in branch groups," Antalya Algebra Days IX, Antalya, Turkey, May 2007.

Conferencer organizer, Analysis on Graphs and Fractals, Cardiff, United Kingdom, May-June 2007.

Peter Howard

30 min. minisymposium talk, SIAM Conference on Applications of Dynamical Systems, Snowbird, Utah, May 28-June 1, 2007.David Kerr

Invited Plenary talk (30 min.), GPOTS (Great Plains Operator Theory Symposium), University of Nebraska, May 2007.Peter Kuchment

Colloquium, "Spectra of Schrödinger operators on carbon graphen and nanotube quantum graph structures," University of Nottingham, UK, May 9, 2007.Colloquium, "Circular mean operator and thermoacoustic tomography," London Analysis Seminar, UCL, London, UK, May 3, 2007.

David Larson

20 min. session, Great Plains Operator Theory Symposium (GPOTS), University of Nebraska, May 2007.Raytcho Lazarov

Colloquium, BICAM, Brunel University, England, May 30, 2007.Volodymyr Nekrashevych

Seminar, Isaac Newton Institute for Mathematical Sciences, Cambridge, UK, May 2007.Matthew Papanikolas

Invited hour talk, "Periods of Drinfeld modules and difference Galois groups," Conference on Galois Representations and Function Field Arithmetic, National Center for Theoretical Sciences, Hsin Chu, Taiwan, May 2007.Seminar, "Difference Galois group calculations," National Center for Theoretical Sciences, Number Theory Seminar, Hsinchu, Taiwan, May 2007.

Invited Researcher (2 weeks), National Center for Theoretical Sciences, Hsinchu, Taiwan, May 2007.

Michael Pilant

Organizer of the First Annual Doha Conference on Applied Mathematics and Computational Science, Texas A&M University at Qatar, Doha, Qatar, May 20-22, 200730 min. talk, "Parameter estimation and modeling in nonlinear systems," First Annual Doha Conference on Applied Mathematics and Computational Science, Texas A&M University at Qatar, Doha, Qatar, May 21, 2007.

Gilles Pisier

Colloquium, Université of Paris 6, May 2007.J. Maurice Rojas

Computer Science Seminar, "Feasibility of complex equations and primes in arithmetic progressions," University of Wisconsin, May 7, 2007.Algebraic Geometry Seminar, "The complete fewnomial conjecture," University of Chicago, May 9, 2007.

Poster Session, "Discriminants and new real topological complexity bounds," Non-linear Computational Geometry, Institute for Mathematics and its Applications, Minnesota, May 29, 2007.

Eric Rowell

Invited 50 min. talk, CINVESTAV, Mexico City, Mexico, May 2007.William Rundell

Colloquium, Universität Mainz, May 2007.Henry Schenck

Invited 30 min. talk, "Syzygies of plane curve singularities," MSRI Workshop on Advances in Algebra and Geometry, Berkeley, CA, May 2007.Jane Schielack

Talk, "A focused prek-8 mathematics curriculum to support the development of concepts, knowledge and skills for preparation for algebra," California Algebra Forum, San Diego, CA, May 2007.Talk, "Curriculum focal points," Pearson Leadership Conference, San Antonio, TX, May 2007.

Panel Discussion, National Perspectives (with G. Burrill, J. Ferrini-Mundy, and N. Torres-Martinez), Seminar for Teacher Educators: Aiming for Excellence in Mathematics Teacher Preparation, College Station, TX, May 2007.

Thomas Schlumprecht

Invited 4 hour Lecture, "Set theory of the reals," University of Florida, Special Year in Logic, May 5-11, 2007.Frank Sottile

Co-organizer (with I. Emiris, R. Goldman, and T. Theobald), Workshop on Non-linear Computational Geometry in the IMA Thematic Year on Applications of Algebraic Geometry, May 28-June 1, 2007.Zoran Sunik

Series of two 50 min. talks, "Limits of graphs in group theory and computer science," Centre Bernoulli, Lausanne, Switzerland, May 2007.Research Visit (2 weeks), Bernoulli Centre Interfacultaire, Lausanne, Switzerland, May 2007.

Jay Walton

Seminar talk, Cardiovascular Research/Clinical Group, Scott & White Hospital, Temple, TX, May 2007.Catherine Yan

One hour Plenary talk, "Crossings and nestings in combinatorics," Ottawa-Carleton Discrete Math Workshop, Ottawa, Canada, May 25-26, 2007.Jianxin Zhou

Two 1 hour talks and an 1 hour numerical demo, "Local theory and methods for solving multiple solution problems," NSF sponsored Conference on Variational and Topology Methods: Theory, Applications, Numerical Simulations and Open Problems, Flagstaff, Arizona, May 23-26, 2007.

## June 2007

G. Donald Allen

Appointed and attended, TQ Instructional Leadership e-Group meeting, Austin, TX, June 10-11, 2007. (By invitation with expenses.)Presentation, All about quadratics - for the teacher, CAMT (Conference for the Advancement of Mathematics Teaching), Henry B. Gonzales Convention Center, San Antonio, TX, June 28-30, 2007.

Presentation, Moving from high school mathematics to college mathematics. What's going on?, with Linda Zientek, Mel Griffin, Jim Wohlgehagen, Jacqueline Weilmuenster, CAMT (Conference for the Advancement of Mathematics Teaching), Henry B. Gonzales Convention Center, San Antonio, TX, June 28-30, 2007.

Wolfgang Bangerth

Invited presentation, 30 min., Oberwolfach seminar on adaptivity and error estimation, Oberwolfach, Germany, June 2007.Invited presentation, 25 min., Applied Inverse Problems Conference, Vancouver, Canada, June 2007.

Colloquium, Electrical Engineering Department, Katholieke Universiteit Leuven, Belgium, June 2007.

Gregory Berkolaiko

Colloquium, University of Strathclyde, June 2007.Research visit to University of Strathclyde, Glasgow, UK, June 2007.

Al Boggess

Invited hour presentation, CR approximation by entire functions at Banach Center in Warsaw Poland, June 2007.Andrew Comech

Colloquium, Institute for Information Transmission Problems of Russian Academy of Sciences, June 19, 2007.Talk, Seventh Conference "Symmetry in nonlinear mathematical physics", the Institute of Mathematics, Kiev, Ukraine, June 27, 2007.

Ronald Douglas

Invited Lecture Series, Advanced Workshop in Operator Theory and Complex Analysis, Sevilla, June 2007.Colloquium in Mathematics Department, University of Lille, June 2007.

Colloquium in Mathematics Department, University of Waterloo.

Kenneth Dykema

45 min. talk, A linearization theorem for noncommutative probability spaces and applications to Connes' embedding problem, Operator spaces, noncommutative L_{p}-spaces and applications, CIRM, Luminy, France, June 2007.45 min. talk, Microstates in amalgamated free products of von Neumann algebras, Free probability, operator spaces and von Neumann algebras, Sibiu, Romania, June 2007.

90 min. talk, Horn inequalities and Connes' embedding problem, C*-Algebras Seminar, University of Muenster, Germany, June 2007.

Yalchin Efendiev

Invited speaker, Workshop on Modeling, Analysis and Simulation of Multiscale Nonlinear Systems, Corvallis, OR, June 25-29, 2007.Rostislav Grigorchuk

Invited 50 min. talk, "Schur Complement and Schreier graphs," Analysis on Graphs and Applications, Cambridge, UK, June 2007.Invited hour talk, "Non-elementary amenability and nonamenability" (two talks), Workshop on Algebraic, Geometric and Probabilistic Aspects of Amenability, Vienna, Austria, June 2007.

William Johnson

Stefan Banach Medal address, Warsaw, June 2007.Functional Analysis Seminar talk, Warsaw, June 2007.

Guido Kanschat

30 min. invited talk, 3rd Scientific Computing Seminar, Kiel, Germany, June 2007.Colloquium, Universität Göttingen, June 2007.

Colloquium, Universität Karlsruhe, June 2007.

David Kerr

30 min. contributed talk, Barcelona Conference on C*-algebras and their Invariants, CRM, Bellaterra, Spain, June 2007.Peter Kuchment

50 min. invited lecture, Analysis on graphs and its applications, Correspondents Meeting, Isaac Institute for Math. Sciences, Cambridge, UK, June 2007.Raytcho Lazarov

25 min. presentation, Hybridization of FE approximations of elliptic problems with applications to discontinuous Galerkin methods, Sixth International Conference on Large Scale Scientific Computations, Sozopol, Bulgaria, June 5-9, 2007.45 min. plenary lecture, Error control and a posteriori error analysis in finite volume methods for convection-diffusion problems, 33rd Conference Applications of Mathematics in Engineering and Economics: AMEE'07, Sozopol, Bulgaria, June 8-14, 2007.

45 min. invited lecture, Discontinuous Galerkin FEM for second order elliptic problems, 3rd International Conference Computational Methods in Applied Mathematics: CMAM-3, Minsk, Belarus, June 25-30, 2007.

Paulo Lima-Filho

Colloquium, IST (Instituto Superior Tecnico, Universidade Politecnica de Lisboa), Portugal, June 2007.Volodymyr Nekrashevych

Invited hour talk, "Analysis on graphs and fractals," Cardiff, UK, 29 May - 2 June, 2007.Colloquium, Kyiv Mathematical Society, June 2007.

Dmitry Panchenko

Summer School on Spin Glasses, Paris, June 2007 (NSF).Joseph Pasciak

50 min. invited talk, Analysis of the PML method applied to scattering problems and the computation of resonances in open systems, Computational and Mathematical Methods in Science and Engineering, June 2007.Gilles Pisier

Organizer, Conference on Non-commutative L_{p}-spaces, (organized with Q. Xu), CIRM, Luminy, June 2007.Alexei Poltoratski

One of the main speakers, 50 min., 15th Annual Analysis Meeting, Euler Institute, St. Petersburg, Russia, June 2007. (A satellite conference for the Euler Festival.)Bojan Popov

30 min. invited minisimposium talk, "Nonlinear methods in computational mathematics," Summer Meeting of the Canadian Mathematical Society, Winnipeg, Manitoba, Canada, May 31-June 3, 2007.William Rundell

Colloquium, Universität Göttingen, June 2007.Henry Schenck

Invited 30 min. talk, "A dimension formula for polyhedral splines," BIRS Workshop on Commutative Algebra, Banff, Canada, June 2007.Jane Schielack

Talk, Curriculum focal points, Textbook Selection Committee, Minneapolis, MN, June 2007.Talk, NCTM's curriculum focal points: what are they? how can they be used? Conference for the Advancement of Mathematics Teaching (CAMT), San Antonio, TX, June 2007.

Talk, Distinguished lecture - The NCTM curriculum focal points in prek-grade 8 mathematics: a guide for building depth and connections in mathematics learning, Texas Elementary Principals and Supervisors Association (TEPSA) Summer Conference, Austin, TX, June 2007.

Vince Schielack

Ripley's mathematical lies: believe it or not!, Conference for the Advancement of Mathematics Teaching (CAMT), San Antonio, June 2007.Roger Smith

20 min. talk, Great Plains Operator Theory Symposium, Lincoln, NE, June 2007.Hour talk, Conference on Operator Spaces, CIRM, Luminy, June 2007.

Frank Sottile

Invited 1-hour talk, Workshop on Real, Tropical, and Complex Enumerative Geometry, Centre de Recherches Mathematiques, June 21, 2007.Seminar talk, University of Minnesota, June 28, 2007.

Peter Stiller

Invited speaker, AFOSR Sensing Review 2007, "Shape, shape statistics, and reconstruction," Harvard University, June 21-22, 2007.Zoran Sunik

50 min. talk, "Analysis on graphs and fractals," Cardiff University, Cardiff, Wales, June 2007.

## July 2007

Marcelo Aguiar

Plenary address, XVII Coloquio Latinoamericano de Álgebra, Medellín, Colombia, July 23-27, 2007.Michael Anshelevich

Invited 55 min. talk, Workshop on Noncommutative Dynamics and Applications, Fields Institute, Toronto, Ontario, Canada, July 2007.Goong Chen

Invited 45 min. talk, "Chemical applications of group theory and symmetries," TAMU/Princeton Summer School on Quantum Optics and Molecular Physics, Casper College, Casper Wyoming, July 15-21, 2007.Prabir Daripa

15 min. talk, "Fast algorithms for PDEs in simple and complex geometries," 6th International Congress on Industrial and Applied Mathematics, Zurich, Switzerland, July 16-20, 2007.Yalchin Efendiev

30 min. talk, Effective Computational Methods for Highly Oscillatory Problems: The Interplay Between Mathematical Theory and Applications, Newton Institute, Cambridge, UK, July 2-6, 2007.Invited talk, The Inaugural Conference on Computational Methods in Energy and Environmental Research, Peking University in Beijing, China, July 9-12, 2007.

Organized 4 mini-sessions (4 speakers each), The Inaugural Conference on Computational Methods in Energy and Environmental Research, Peking University in Beijing, China, July 9-12, 2007.

Rostislav Grigorchuk

Conference Organizer, 6th International Algebraic Conference in Ukraine, Kamyanets-Podilsky, Ukraine, July 1-7, 2007.William Johnson

Invited hour address, 2007 von Neumann Symposium on "Sparse representation and high-dimensional geometry," Snowbird, Utah, July 2007.Guido Kanschat

20 min. minisymposium (solvers) ICIAM 07, Zürich, July 2007.20 min. minisymposium (software) ICIAM 07, Zürich, July 2007.

Peter Kuchment

50 min. invited lecture, "Low dimensional models for wave propagation in thin structures," International School "Complex optics in mesoscopic materials," Erice, Sicily, Italy, July 2007.Joseph Landsberg

U. Firenze, Geometry Seminar, July 2007.U. Bologna, Geometry Seminar, July 2007.

U. Grenoble, Geometry Seminar, July 2007.

Laura Matusevich

Hour workshop talk, IMA Summer School on Applicable Algebraic Geometry, Texas A&M University, July 2007.Fran Narcowich

Half hour talk, "Divergence-free RBFs on spheres and other surfaces," Special Session, "Approximation on the Sphere", ICIAM 07, Zurich, Switzerland, July 16-20, 2007.Volodymyr Nekrashevych

Minicourse of 5 one hour lectures, Amenability, Erwin Schroedinger Institute, Vienna, February-July 2007.Invited hour talk, Groups and their actions, Bedlewo, Poland, July 1-7, 2007.

Matthew Papanikolas

Contributed 20 min. talk, Difference Galois groups and periods of Drinfeld modules, 25th Journées Arithmétiques, University of Edinburgh, Edinburgh, Scotland, July 2007.Guergana Petrova

25 min. conference talk, "Central-upwind schemes for two-layer shallow water equations," Sixth International Congress on Industrial and Applied Mathematics, Zurich, Switzerland, July 16-20, 2007.Gilles Pisier

Mini-course (5 lectures) on "Non-commutative L_{p}-spaces and operator spaces," Nankai University, Tianjin, China, July 2007.Conference talk, Schrödinger Institute, Vienna, July 2007.

J. Maurice Rojas

Algebraic geometry seminar, Random polynomial systems and balanced metrics on toric varieties, Institute for Mathematics and its Applications, July 27, 2007.Talk, "P=NP, Optimization, and Algebraic Geometry," IMA Summer School in Algebraic Geometry, Texas A&M University, July 27, 2007.

Eric Rowell

50 min. invited talk, XVII Coloquio Latinoamericano de Algebra, Medellin, Columbia, July 2007.Thomas Schlumprecht

Invited, 2 hour plenary, International Conference on Banach Spaces and Operator Spaces, Chern Institute of Mathematics, Tianjin, China, July 21-25, 2007.Peter Stiller

Invited participant, Statistical and Applied Mathematical Sciences Institute (SAMSI), Summer 2007 Program on the Geometry and Statistics of Shape Spaces, Research Triangle Park, NC, July 7-13, 2007.Emil Straube

Invited 25 min. talk, AMS/Polish Math. Soc. Joint International Meeting, Warsaw, Poland, Special Session in Complex Analysis and Operator Theory, July 31-Aug. 3, 2007.Joint International Meeting of the AMS and the Polish Math. Society (25 min. invited), Special Session on Complex Analysis and Operator Theory, Warsaw, Poland, July 31-Aug. 3, 2007.

Joe Ward

30 min. talk, "Bernstein theorems for SBFs on the n-sphere," Special Session on "Approximation on the Sphere" at the ICIAM, Zurich, Switzerland, July 16-20, 2007.Invited hour talk, "Approximation power of RBFs and their associated SBFs: a connection," Georg-August-Universität Göttingen, Germany, July 13, 2007.

Catherine Yan

Contributed Poster Presentation, "Multi-parking functions, graph search, and Tutte polynomial," 19th International Conference in Formal Power Series and Algebraic Combinatorics, Nankai University, Tianjin, China, July 2-7, 2007.Summer Colloquium Series, Graduate School of Academic Sinica, Beijing, China, July 8-21, 2007.

Combinatorics Seminar, Beijing University, China, July 17, 2007.

Philip Yasskin

Talk, "Technology in AP calculus," (panel organizer with Meade), Advanced Placement Annual Conference 2007, (Panel members: Yasskin, Meade, Dorothy Wallace, Dartmouth, Raymond Ravaglia, and Stanford), Las Vegas, July 2007.Jianxin Zhou

30 min. talk, "Solving multiple solution problems," at The Inaugural Conference on Computational Methods in Energy and Environmental Research, held jointly by Texas A&M University and Peking University, Beijing, China, July 9-12, 2007.

## August 2007

G. Donald Allen

Keynote address, Technology in Math Education at Texas A&M University, JEM - Workshop on New and Emerging Technologies in Math Education, Helsinki, August 17-18, 2007.Wolfgang Bangerth

Invited presentation (25 min.), ICCOPT-MOPTA 2007 Conference, Hamilton, Canada, August 2007.Ioan Bejenaru

Hour workshop talk, MSRI Summer Microprogram on Nonlinear PDE, MSRI, Berkeley, August 2007.Goong Chen

Invited 30 min. talk, "Some of my most favorite unsolved problems related to the chaotic vibration of the wave equation," One-Day Workshop on Dynamical Systems, Institute of Mathematics, Academia Sinica, Taipei, Taiwan, August 2007.Invited 2-hour colloquia, "A chitchat on greenhouse effects and some mathematical properties of greenhouse gas molecules, parts (I) and (II)," Department of Mathematics, National Taiwan University, Taipei, Taiwan, August 2007.

Prabir Daripa

Colloquium, invited one-hour talk, "On stability of multi-layer Hele-Shaw flows," Applied-Math-Seminar, Mathematics Department, Indian Institute of Technology, Kharagpur, India, August 13, 2007.Colloquium, invited one-hour talk, "On fast algorithms for PDEs in simple and complex geometries," Applied-Math-Seminar, Mathematics Department, Indian Institute of Technology, Kharagpur, India, August 14, 2007.

Colloquium, invited one-hour talk, "On stability of multi-layer Hele-Shaw flows," Mathematics and Physics Unit, Indian Statistical Institute, Kolkata, India, August 16, 2007.

Kenneth Dykema

50 min. talk, "Horn's inequalities and Connes' embedding problem," Operator spaces and group algebras, BIRS, Banff, Alberta, Canada, August 2007.Yalchin Efendiev

Invited talk, Tenth Workshop in Partial Differential Equations, IMPA, Rio de Janeiro, Brazil, August 6-10, 2007.William Johnson

Invited hour address, Conference on Real Analysis, Geometric Measure Theory, PDE and Banach Spaces, Warwick, England, August 2007.Peter Kuchment

50 min. invited lecture, "Liouville theorems for periodic equations on abelian coverings," International Conference on Spectral Analysis in Geometry and Number Theory, Nagoya, Japan, August 2007.Dmitry Panchenko

Conference organizer, The Informal Regional Functional Analysis Seminar, Texas A&M, August 2007.Gilles Pisier

Two lectures, BIRS, Banff, August 2007.Bojan Popov

30 min. invited talk, "Wavelets and multiscale methods," Oberwolfach, Germany, July 29-August 4, 2007.J. Maurice Rojas

Invited series of ten talks, "Efficient polynomial system solving: sn introduction," Sandia National Laboratories, Combustion Research Facility, Livermore, CA, August 8-12, 2007.Henry Schenck

Invited hour talk, "A syzygy approach to projective normality," MFO Workshop on Projective Normality of Smooth Toric Varieties, Oberwolfach, Germany, August 2007.Talk at Oberwolfach, August 2007.

Roger Smith

Hour talk, Conference on Harmonic Analysis and Operator Spaces, BIRS, Banff, August 2007.Colloquium, "Homogeneous operator algebras," University of Houston, August 2007.

Frank Sottile

Seminar talk, IMA PI Summer Graduate School on Applicable Algebraic Geometry, August 2, 2007.Emil Straube

Invited 50 min. talk, IV Workshop on Geometric Analysis on PDE and Several Complex Variables, Serra Negra, Brazil, August 6-11, 2007.Philip Yasskin

Hour talk, "On-line calculus resources at Texas A&M University," AP Calculus Workshop, August 1, 2007.

## September 2007

Marcelo Aguiar

Invited talk, "Shuffles, descents and representations," Conference in memory of Manfred Schocker, Nice, September 10-15 2007.Math Department Colloquium at Texas A&M University, September 27, 2007.

G. Donald Allen

Presentation, Focus group for the governor's commission for a college ready Texas, Meeting of Business Leaders and Faculty to Discuss College Readiness Standards, Austin Airport Hilton, Austin, Texas, September 7, 2007.Goong Chen

Invited one-hour seminar, "Introduction to quantum computing devices," Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan, September 2007.Invited one-hour talk, "Mathematical formulations of atom trap quantum gates," NSF Conference on Representation Theory, Quantum Field Theory, Mathematical Physics and Quantum Information Theory, Mathematics Department, University of Texas at Tyler, Tyler, TX, September 20-23, 2007.

Kenneth Dykema

55 min. talk, "Horn's inequalities and Connes' embedding problem," 5th Annual ECOAS (East Coast Operator Algebras Symposium), Wellesley, MA, September 2007.40 min. talk, "Microstates in amalgamated free products of von Neumann algebras," 28th Quantum Probability Conference, CIMAT, Guanajuato, Mexico, September 2007.

Stephen Fulling

Plenary 45 min. talk, 8th Workshop on Quantum Field Theory under the Influence of External Conditions, Leipzig, Germany, September 2007.Rostislav Grigorchuk

Invited 50 min. talk, "On Dehn functions of infinitely presented groups," Profinite and Asymptotic Group Theory, Levico Terme, Italy, September 2007.Invited 50 min. talk, "On Dehn functions of infinitely presented groups," Conference Dedicated to the 100th Anniversary of W. Magnus, New York, September 2007.

Conference organizer, Conference Dedicated to the 100th Anniversary of W. Magnus, New York, September 2007.

Peter Howard

Colloquium, Texas A&M University, September 2007.Peter Kuchment

Seminar, "On an inverse problem for the wave equation that arises in medical imaging," Math. Physics, TAMU, September 2007.Joseph Landsberg

Invited hour plenary lecture, Annual Conference of the Heilbronn Institute for Mathematical Research (HIMR), Bristol, September 2007.Colloquium and Geometry Seminar, U. College, Cork, Ireland. September 2007.

London Geometry and Topology Seminar, Imperial College, September 2007.

Geometry day at Loughborough, September 2007.

Harvard-MIT Algebraic Geometry Seminar, September 2007.

Northeastern Geometry-Representation Theory Seminar, September 2007.

Laura Matusevich

Colloquium, University of Illinois at Urbana-Champaign, September 2007.Colloquium, Purdue University, September 2007.

Volodymyr Nekrashevych

Invited hour talk, "A celebration of group theory," A conference dedicated to the memory of Wilhelm Magnus, New York, September 28-29, 2007.Matthew Papanikolas

Featured Speaker (Invited hour talk), "Problems in transcendental number theory," Thirty-Fifth Annual Conference on Number Theory, Miami University, Oxford, OH, September 2007.Bojan Popov

Seminar talk, "L^{1}-approximation of Hamilton-Jacobi equations," University of South Carolina, September 2007.J. Maurice Rojas

Number Theory Seminar, "Torsion points and algorithmic fewnomial theory," Univeristy of Texas at Austin, September 27, 2007.Eric Rowell

50 min. invited talk, "Representation theory, quantum field theory, category theory, mathematical physics and quantum information theory," UT Tyler, September 2007.Henry Schenck

Algebraic Geometry Seminar, UIUC, September 2007.Thomas Schlumprecht

Invited one hour, Wabash Conference on Abstract Analysis, Indianapolis, Indiana, September 8-9, 2007.Colloquium, University of Illinois, Urbana Champaign, September 2007.

Roger Smith

Colloquium, "Cohomology into the compact operators," University of Glasgow, September 2007.Frank Sottile

30 min. talk, Computational Methods for Algebraic Spline Surfaces (COMPASS 07), Strobl, Austria, September 12, 2007.Seminar talk, Technische Universität München, September 14, 2007.

Colloquium, Sam Houston State University, September 21, 2007.

Seminar talk, Texas A&M University, 27 August 2007.

Seminar talk, Texas A&M University, 29 August 2007.

Seminar talk, Texas A&M University, 7 September 2007.

Zoran Sunik

50 min. talk, Algebra Day, Carleton University, Ottawa, Canada, September 2007.Organizer, Group Theory: Generations, Conference in honor of W. Magnus, CUNY, New York, September 2007.

## October 2007

G. Donald Allen

Invited, Improving science and math education: Texas confronts the gathering storm, A dinner and forum sponsored by The Academy of Medicine, Engineering and Science of Texas and Rice University's James A. Baker III Institute for Public Policy, funded by Dow Chemical and the Greater Texas Foundation, Houston, TX, October 12, 2007.Invited address, "Course redesign at TAMU," presented to the Texas Association of Academic Administrators in Mathematical Sciences (TAAAMS), at Baylor University, Waco, TX, October 13, 2007.

Attended, Course Redesign Workshop, Texas Higher Education Coordinating Board, Austin, TX, October 15, 2007.

Attended, Teacher Quality Grant Workshop and Dana Center Annual Higher Ed Meeting, Airport Austin Hilton, Austin, TX, October 18-20, 2007.

Attended, AMS Committee on Education Annual Meeting, Washington, DC, October 25-27, 2007.

Wolfgang Bangerth

Invited presentation (60 min.), MAMOS Workshop, Austin, TX, October 2007.Harold Boas

20 min. special session, American Mathematical Society, Special Session on Analysis and CR Geometry, DePaul University, Chicago, October 5, 2007.Goong Chen

Invited one hour colloquium, "Introduction to greenhouse effects and greenhouse gas molecules," Department of Mathematics, Colorado State University, Fort Collins, Colorado, October 2007.Andrew Comech

Colloquium, Technische Universität Darmstadt, October 24, 2007.Colloquium, Technische Universität München, Oberseminar zur Mathematischen Physik, October 30, 2007.

Prabir Daripa

20 min. talk, "Diffusive slowdown of instabilities in three-layer Hele-Shaw flows," 44th Annual Technical Meeting of the Society of Engg. Sciences, College Station, TX, October 21-24, 2007.Invited minisymposium talk, "Role of multi-scale in unstable multi-layer Hele-Shaw flows," 44th Annual Technical Meeting of the Society of Engg. Sciences, College Station, TX, October 21-24, 2007.

Kenneth Dykema

60 min. colloquium, "Freeness, von Neumann algebras and matricial microstates," Indiana University Bloomington, IN, October 2007.Rostislav Grigorchuk

Conference participation, Dichotomy Amenable/Nonamenable in Combinatorial Group Theory, Palo Alto, California, October 8-12, 2007.Jean-Luc Guermond

Invited talk, "On the contruction of suitable weak solutions of the Navier-Stokes equations," 1030th AMS Meeting, Chicago, October 5-6, 2007.Peter Howard

Colloquium, Penn State University, October 2007.Colloquium, University of Louisville, October 2007.

David Kerr

Seminar, Banach spaces and related topics, Texas A&M University, October 2007.Peter Kuchment

Colloquium, "Analysis on graphs and its applications," Math. Dept., UT Arlington, October 5, 2007.Laura Matusevich

20 min. special session, American Mathematical Society, Special Session on Toric Varieties, Fall Eastern Section Meeting, Rutgers University, New Brunswick, NJ, October 2007.Fran Narcowich

Hour talk, "Divergence-free RBFs on spheres and other surfaces," 2nd Workshop on Constructive Function Theory, Sam Houston State Univ., October 26-27, 2007.Volodymyr Nekrashevych

Invited hour talk, "Dichotomy amenable/nonamenable in combinatorial group theory," Palo Alto, CA, October 8-12, 2007.Matthew Papanikolas

Seminar, "Frobenius difference equations," University of Texas, Number Theory Seminar, Austin, TX, October 2007.Gilles Pisier

Two lectures, American Inst. of Math., AIM, October 2007.Colloquium, UTSA, San Antonio, October 2007.

Alexei Poltoratski

Talk, University of Oklahoma, October 2007.Bojan Popov

Seminar talk, "Second order schemes and entropy," Texas A&M, October 2007.J. Maurice Rojas

Introductory talk, "Most hard equations are easy," Modern Mathematics Workshop, Kansas City, Missouri, October 11, 2007.Outreach talk, "Codes and numbers," mathematics enrichment demonstration, 1st - 4th grade classes, Aggieland Country School, College Station, October 25, 2007.

Henry Schenck

Colloquium, Texas A&M University, October 2007.Jane Schielack

Talk, "Let's focus to improve mathematics teaching and learning," South Carolina Teachers of Mathematics Conference, Greenville, SC, October 2007.Talk, "The NCTM curriculum focal points for mathematics in prekindergarten through grade 8: how YOU can use them," The Charles A. Dana Center's Annual Mathematics and Science Higher Education Conference, October 2007.

Thomas Schlumprecht

Invited one hour, Kent State Informal Analysis Seminar, Kent, Ohio, October 27-28, 2007.Roger Smith

Colloquium, "Cones defined by operator subalgebras," University of Waterloo, October 2007.Colloquium, "Invariants for masas," University of Copenhagen, October 2007.

Frank Sottile

Seminar talk, University of Illinois-Chicago, October 25, 2007.Colloquium, University of Illinois-Chicago, October 26, 2007.

Seminar talk, Texas A&M University, October 5, 2007.

Seminar talk, Texas A&M University, October 22, 2007.

Emil Straube

Invited 30 min. talk, AMS meeting at Rutgers University, Special Session on Geometric Analysis of Complex Laplacians, October 6-7, 2007.Jay Walton

25 min. special sessions, "Small amplitude vibration of a nonlinearly elastic tubular body," Symposium on New Directions in Large Deformation Solid Mechanics, 44th Annual Meeting of the Soc. Engr. Sci., College Station, TX, October 2007.Joe Ward

Hour talk, "Norming sets in multivariate approximation: an overview," Constructive Function Theory, Sam Houston State Univ., October 26-27, 2007.Catherine Yan

Algebra, Number Theory and Combinatorics Seminar, University of Texas, October 18, 2007.Matthew Young

Invited hour talk, Texas A&M Number Theory Seminar, October 2007.

## November 2007

G. Donald Allen

Panel Presentation, University interface with community colleges to ensure success of transfer students through the NSF GK-12 program, at the Southwest Regional NSF GK-1Approximation with Interpolatory Constraints, Texas A&M at Praire View, Nov. 9, 2007 2 Conference College Station, Texas (with Mel Griffin, Bob Brick, Claudia Davis, Alice Sessions); Representing GK-12 Programs: G. Donald Allen, Jan Snyder, Kate Miller, Nancy Moreno, G. Donald Allen - moderator, November 9-10, 2007.Wolfgang Bangerth

Colloquium, Department of Mathematics, University of Houston, Houston, TX, November 2007.Goong Chen

Invited 30 min. talk, "Mefisto calculations of multiple solutions of nonlinear elliptic PDEs and molecular quantum mechanics," Journee Alain Perronnet (a one-day conference in honor of the retirement of my collaborator Prof. Alain Perronnet), Labratoire J.L. Lions, Universite de Paris VI, Paris, France, November 2007.Andrew Comech

Colloquium, Moscow State University, M.I. Vishik's Seminar on Partial Differential Equations, November 26, 2007.Prabir Daripa

Colloquium, invited one-hour talk, "Multi-phase flow and enhanced oil recovery," College of Engineering, PVAMU, November 6, 2007.Colloquium, invited one hour talk, "Stability of multi-layer Hele-Shaw flows with and without diffusion," Department of Mathematics, SMU, Dallas, November 7, 2007.

15 min. talk, "Stability results on multi-layer Hele-Shaw flows," 60th Annual Meeting of the Division of Fluid Dynamics, APS, Salt Lake City, Utah, November 18-20, 2007.

15 min. talk, "Thickening effect of surfactants in the drag-out coating problem," 60th Annual Meeting of the Division of Fluid Dynamics, APS, Salt Lake City, Utah, November 18-20, 2007.

Kenneth Dykema

50 min. talk, "Horn's inequalities and Connes' embedding problem," von Neumann Algebra Workshop, Fields Institute Toronto, November 2007.50 min. colloquium talk, "Freeness, von Neumann algebras and matricial microstates," CRM–University of Ottawa Distinguished Lecture, Ottawa, Canada, November 2007.

Yalchin Efendiev

25 min. talk in IMACS, College Station, November 2007.Tamas Erdelyi

Talk, "Modern approaches in asymptotics of polynomials," Banff, Canada, November 14, 2007.Rostislav Grigorchuk

Colloquium, "The beginning of the Atlas of self-similar groups," Indiana University Purdue University Indianapolis, Indianapolis, November 2007.Jean-Luc Guermond

Numerical Analysis Seminar, University of Maryland, College Park, MD, November 6, 2007.Guido Kanschat

30 min. invited talk, BIRS Workshop on Discontinuous Galerkin Methods, Banff, Canada, November 2007.30 min. invited talk, International Conference on Theoretical and Numerical Fluid Mechanics, Vancouver, Canada, November 2007.

Colloquium, University of Alberta, Edmonton, November 2007.

Consulting, University of Minnesota, November 2007.

David Kerr

45 min. invited talk, Workshop on Structure of C*-algebras, Fields Institute, Canada, November 2007.Analysis Seminar, University of Waterloo, Canada, November 2007.

Peter Kuchment

45 min Invited lecture, "Mathematical problems of thermoacoustic tomography," International "Biomedical Imaging" Workshop, Radon Inst., Linz, Austria, November 2007.Volodymyr Nekrashevych

Invited hour talk, "Topics in geometric group theory," MSRI, Berkeley, CA, November 5-9, 2007.Matthew Papanikolas

Colloquium, "Survey of transcendental number theory," University of North Texas, Denton, TX, November 2007.Seminar, "Frobenius difference equations and applications," University of North Texas, Algebra Seminar, Denton, TX, November 2007.

J. Maurice Rojas

Invited colloquium, "Most hard equations are easy," University of Houston, November 28, 2007.Henry Schenck

Algebra Seminar, UIUC, November 2007.Jane Schielack

Talk, "Improving student achievement in middle-level mathematics through standards-based instruction" (with J. R. Choike and K. Forgione), 4th Annual Meeting of the Council of Chief State School Officers (CCSSO) and Texas Instruments Research and Development Advisory Committee, Austin, TX, November 2007.Talk, "Ongoing questioning to enhance students' engagement in mathematical thinking," National Council of Teachers of Mathematics (NCTM) Regional Conference and Exposition, Houston, TX, November 2007.

Vince Schielack

"Techniques for using the geometer's sketchpad (GSP)," Mathematics Classroom, NCTM Regional Meeting, Houston, November 2007."Some mathematical lies of Ripley," NCTM Regional Meeting, Houston, November 2007.

Thomas Schlumprecht

Colloquium, Millican Lecture, University of North Texas, November 2007.Frank Sottile

Seminar, Texas A&M University, 12 November 2007.Zoran Sunik

30 min. talk, Workshop on Algorithms, Combinatorics, and Geometry, University of North Texas, Denton, TX, November 2007.Yaroslav Vorobets

Invited talk, "Stability of periodic billiard trajectories in polyhedra," AMS Sectional Meeting #1033, section on billiards and related topics, Murfreesboro, TN, November 3-4, 2007.Joe Ward

Hour talk, "Approximation with interpolatory constraints," Texas A&M at Praire View, November 9, 2007.Sarah Witherspoon

Algebra and Combinatorics Seminar, Texas A&M University, November 26, 2007.Catherine Yan

Colloquium talk, Vanderbilt University, November 8, 2007.

## December 2007

Marcelo Aguiar

Invited talk, CMS winter meeting, London, Ontario, Special Session on Algebraic Combinatorics, Representations and Geometry, December 8-10, 2007.Conference Primer Coloquio Uruguayo de Matemática, Montevideo, Uruguay, December 19-21, 2007. Three lectures of 1:15 each.

Ioan Bejenaru

Invited hour talk, UC Berkeley, October 2007.Goong Chen

Invited Professor, Institute of Mathematics, Academia Sinica, Taipei, Taiwan, December 10, 2007-January 8, 2008.Invited 50 min. talk, "Construction of some soliton solutions to the cubic nonlinear Schrödinger equation with variable coefficients in optics," Annual Meeting of the Mathematical Society of Taiwan, Institute of Mathematics, Academia Sinica, Taipei, Taiwan, December 2007.

Three two hour seminars, Seminar on Analysis, Institute of Mathematics, Academia Sinica, Taipei, Taiwan, December 2007-January 2008, where I discussed generalized functions, boundary layer potentials and the nonlinear Schrödinger equations.

Andrew Comech

Colloquium, Physics Institute of Russian Academy of Sciences, Seminar on Quantum Field Theory, December 7, 2007.Colloquium, Oberseminar "Angewandte Analysis," Universität Duisburg-Essen, December 20, 2007.

Peter Howard

30 min. minisymposium talk, SIAM Conference on Analysis of Partial Differential Equations, Mesa, Arizona, December 10-12, 2007.William Johnson

Colloquium, University of Missouri, December 2007.David Larson

Colloquium, University of North Carolina-Charlotte, December 2007.Paulo Lima-Filho

Colloquium, Trinity University, San Antonio, December 2007.Gilles Pisier

Four lectures, Bangalore, India, December 2007.Eric Rowell

30 min. invited talk, "Knots and quantum computing," UT Dallas, December 2007.William Rundell

Invited speaker, Conference on Numerical Methods and Modelling, Tunis, Tunisia, December 2007.Henry Schenck

Invited hour talk, "Algebra and geometry of four sections of O(2,1)," MFO Workshop on Surface Modelling and Syzygies, Oberwolfach, Germany, December 2007.Organizer, Miniworkshop "Surface Modeling and Syzygies," Oberwolfach, December 2007.

Frank Sottile

1/2 hour talk, Oberwolfach, December 9-15, 2007.Poster, Japanese-American Frontiers of Science, Japan, December 1-3, 2007.

Program committee, Mathematical Aspects of Computer and Information Sciences (MACIS 2007), Paris, France, December 3-7, 2007.

Zoran Sunik

50 min. talk, "Actions on trees, non-archimedian words, and asymptotic cones," Saint Sauveur, Canada, December 2007.50 min. talk, "Asymptotic group theory and cryptography," Carleton University, Ottawa, Canada, December 2007.

Yaroslav Vorobets

Invited talk, "Stability of periodic billiard trajectories in polygons and polyhedra," Special Day on Groups and Dynamics, College Station, TX, December 5, 2007.Jay Walton

25 min. special sessions, "Modeling brittle fracture through an extension of continuum mechanics to the nanoscale," Mini-Symposium on Microstructures, Spectral Properties and Homogenization, SIAM Conference on Analysis of Partial Differential Equations, Mesa, AZ, December 2007.

Last modified August 20, 2009 by RLC.