MenuEvents for 10/26/2016 from all calendars
Julia Plavnik
Time: 12:00PM - 12:20PM
Location: BLOC 220
Speaker: Postdoc Talks, Texas A&M University
Description: 12:00pm - 12:20pm - Julia Plavnik Title: On the classification of weakly integral modular categories. Abstract: In this talk, we will first introduce some basic definitions and properties of fusion, braided and modular categories, and we will also give some basic examples to help understand these structures. We will present a panorama about the current state of the classification program of weakly integral modular categories.
Yue Cai
Time: 12:35PM - 12:55PM
Location: BLOC 220
Speaker: Postdoc Talks, Texas A&M University
Description: 12:35pm - 12:55pm - Yue Cai Title: A new expression for q-Stirling numbers Abstract: In this talk we give a q-(1+q)-analogue for the Stirling numbers and show the poset explanation for this phenomenon.
Ignacio Tomas
Time: 12:55PM - 1:15PM
Location: BLOC 220
Speaker: Postdoc Talks, Texas A&M University
Description: 12:55pm - 1:15pm - Ignacio Tomas Title: Micropolar Navier-Stokes Equations and the Rosensweig Model for Ferrofluids Abstract: In this talk I will discuss the Micropolar Navier Stokes equations, numerical discretizations, and their extension to the Rosensweig model which is the most widely accepted PDE model for ferrofluids.
Yuan Zhang
Time: 1:15PM - 1:35PM
Location: BLOC 220
Speaker: Postdoc Talks, Texas A&M University
Description: 1:15pm - 1:35pm - Yuan Zhang Title: Contact Process and related interacting particle systems Abstract: In this talk we discuss some basic concepts and results of the contact process and some related or generalized interacting particle systems.
Number Theory Seminar
Time: 1:45PM - 2:45PM
Location: BLOC 220
Speaker: Fang-Ting Tu, Lousiana State University
Title: Hypergeometric functions over finite fields
Abstract: Based on the developments of many people, hypergeometric functions over finite fields are known to be related to various arithmetic objects. In this talk, we will discuss the hypergeometric functions over finite fields (HF) in a manner that is parallel to the classical hypergeometric functions. Due to the Galois perspective of HF and an explicit dictionary, we systematically translate certain types of classical hypergeometric transformations to the finite field version. As an application, we study the arithmetic of hypergeometric varieties using transformation and evaluation formulas of HF.
URL: Event link
Noncommutative Geometry Seminar
Time: 2:00PM - 2:50PM
Location: BLOC 628
Speaker: Erik Guentner, University of Hawaii at Manoa
Title: Proper affine actions of certain relatively hyperbolic groups
Abstract: I will discuss the following result: if a group is hyperbolic relative to a subgroup with polynomial growth then it admits a proper isometric action on a reasonable Banach space. A key idea of the proof is to combine Mineyev’s flower construction for hyperbolic graphs of bounded geometry with an averaging technique that uses amenability of the peripheral subgroup.
Numerical Analysis Seminar
Time: 3:00PM - 4:00PM
Location: BLOC 628
Speaker: David Levin, Tel Aviv University
Title: Approximation of manifolds in high dimensions
Abstract: TBA
Groups and Dynamics Seminar
Time: 3:00PM - 4:00PM
Location: BLOC 220
Speaker: Andrew Bridy, Texas A&M
Title: State Complexity of Automatic Sequences
Abstract: Finite automata and automatic sequences play an important role in many areas of group theory. Christol's theorem states that a power series over a finite field is an algebraic function if and only if its coefficient sequence can be produced by a finite automaton. I show that the number of states in the automaton is bounded in terms of algebraic invariants of the power series.
Inverse Problems and Machine Learning
Time: 4:00PM - 5:00PM
Location: BLOC 628
Speaker: Fatma Terzioglu, TAMU
Title: Image Reconstruction from Compton Camera Data
Abstract: In this presentation, we address analytically and numerically the inversion of the integral transform (cone or Compton transform) that maps a function on R^n to its integrals over conical surfaces. It arises in a variety of imaging techniques, e.g. in astronomy, optical imaging, and homeland security imaging, especially when the so called Compton cameras are involved. We present several inversion formulas for the cone transform and the results of their numerical implementation in 2D and 3D.
