Skip to content
Texas A&M University

Events for 11/16/2020 from all calendars

Colloquium - Sherry Gong

iCal  iCal

Time: 1:00PM - 2:00PM

Location: Zoom

Speaker: Sherry Gong, Stanford University

Title: Invariants of knots and links
Abstract: We give an overview of some invariants to distinguish knots and links, and discuss some particular algebraic and geometric invariants. We discuss how these invariants relate to the smooth 4-dimensional Poincare conjecture, one of the most important questions in 4-manifold topology.

Geometry Seminar

iCal  iCal

Time: 3:00PM - 4:00PM

Location: zoom

Speaker: H. Derksen, Northeastern U.

Title: The G-Stable Rank for Tensors

Abstract: A tensor of order d is a d-dimensional array. There are various generalizations of the rank of a matrix to tensors of order 3 or more. I will introduce one such generalization, the G-stable rank, and compare it to other rank notions such as the tensor rank and the slice rank. The G-stable rank is related to the notion of stability in Geometric Invariant Theory. As an application of the G-stable rank, we find better upper bound for the Cap Set Problem.

Industrial and Applied Math

iCal  iCal

Time: 6:30PM - 7:30PM

Location: ZOOM

Speaker: Eric Tovar, TAMU

Title: Mathematical and Computational Issues in Coastal Hydrodynamics

Abstract: (Meeting ID: 912 9688 4302) As urbanization is encroaching more and more on flood prone regions and paved surfaces are ever expanding, more catastrophic flash floods occurring in urban environments are expected in the near future. These risks are compounded by global changes in the climate. Mathematics can help better predict and understand these situations through modeling and numerical simulations. The aim of this talk is to discuss current mathematical and computational issues in modeling of shallow water flows with applications in coastal hydraulics, large-scale oceanography, and river and estuary hydraulics. The talk is split into two parts. First, we discuss the work on coastal hydraulics being conducted at the US Army Engineer Research and Development. Second, we give an overview on the work done on dispersive shallow water waves here at TAMU and highlight some numerical results.

URL: Event link