Events for 10/30/2018 from all calendars

Nonlinear Partial Differential Equations

Time: 3:00PM - 4:00PM

Location: BLOC 628

Speaker: Alejandro Aceves, Southern Methodist University

Title: Nonlinear PDE's Seminar

Abstract:

Title: Mathematical modeling of light filamentation

Abstract:
Since the first observation of a nonlinear process in light matter interaction in 1961, better lasers and designs of photonic structures have opened new ways to explore nonlinear phenomena with many important technological applications. In this talk we will focus our attention to spatio-temporal dynamics and coherent modes described by nonlinear Schrӧdinger-like equations. While the presentation will center on models developed to explain experiments of light filament propagation in air, we will also discuss recent optical experiments in quadratic media, multi-mode fibers and fiber arrays; most in need of a fresh theoretical formulation.

Student Working Seminar in Groups and Dynamics

Time: 3:50PM - 4:50PM

Location: BLOC 506A

Speaker: Zheng Kuang

Title: Growth of groups

Abstract: I will compare two ways to determine subexponential growth of the first Grigorchuk group, and then talk about the (subexponential) growth of another class of groups. In the end, I will introduce the method of assigning weights to each generator to obtain a sharp upper bound for the growth function.

Student/Postdoc Working Geometry Seminar

Time: 5:00PM - 6:00PM

Location: BLOC 628

Speaker: C. Ikenmeyer, Berkeley/Saarbruchen

Title: Combinatorial description of Kronecker coefficients