Events for 04/27/2015 from all calendars

Free Probability Seminar

Time: 11:30AM - 12:20PM

Location: BLOC 628

Speaker: Steve Avsec, TAMU

Title: Brownian motion of matrix argument and martingales

Geometry Seminar

Time: 3:00PM - 3:50PM

Location: Bloc 220

Speaker: Elizabeth Drellich, University of North Texas

Title: Schubert calculus of (some) Hessenberg varieties

Abstract: Hessenberg varieties are a large family of subvarieties of flag varieties G/B that depend on two parameters: a subspace of the Lie algebra, and an element of that Lie algebra. By fixing a particular subsapce, element, or both, we can get special subfamilies like Springer varieties, regular nilpotent Hesseberg varieties, or Peterson varieties, respectively. This talk will explain how we can, to varying extents, do (equivariant) Schubert calculus with these varieties, and present classes and structure constants for (equivariant) cohomology of the Peterson variety.

Applied Math Seminar

Time: 4:00PM - 5:00PM

Location: BLOC 628

Speaker: Dr. Andrew Wharmby, Air Force Research Laboratory

Title: Modifying Maxwell’s equations for dielectric materials based on techniques from viscoelasticity and concepts from fractional calculus

Abstract: A mathematical model of viscoelasticity employing fractional order derivatives is adapted and applied to model the dielectric behavior of materials while remaining consistent with thermodynamic principles. The model is then incorporated into Maxwell’s equations using techniques from viscoelasticity. The modified Maxwell’s equations are found to yield a fractional order wave equation that is solved analytically and is found to remain consistent with dissipative and dispersive phenomena.