Student/Postdoc Working Geometry Seminar
Spring 2023
Date: | January 11, 2023 |
Time: | 2:00pm |
Location: | BLOC 624 |
Speaker: | JM Landsberg, TAMU |
Title: | Limits of saturated ideals and why computer scientists should care about them |
Date: | January 20, 2023 |
Time: | 1:00pm |
Location: | BLOC 628 |
Speaker: | Tim Seynnaeve |
Title: | Signature tensors and their representation theory |
Abstract: | In stochastic analysis, the k-th signature of a path is a k-way tensor which encodes information about the path in a compact form. When the path varies, the signatures parametrize a subvariety of tensor space, giving a connection to algebraic geometry. In this talk I will present some recent results on varieties on signature tensors, and report on some work in progress (joint with Carlos Amendola, Francesco Galuppi, Angel Rios, and Pierpaola Santarsiero), where we look at these varieties through the lens of representation theory. |
Date: | February 17, 2023 |
Time: | 1:00pm |
Location: | BLOC 628 |
Speaker: | Liena Colarte Gómez, IPAM (Warsaw) |
Title: | Hyperplane arrangements and their module of logarithmic derivations |
Abstract: | A hyperplane arrangement A in the projective space is a finite collection of hyperplanes. To this variety, we attach a submodule Der(A) of the classical module of derivations, called the module of logarithmic derivations of A. In this talk, we approach the problem of understanding the algebraic structure of Der(A) and its freeness towards the so called Terao's conjecture. |
Date: | February 24, 2023 |
Time: | 1:00pm |
Location: | BLOC 628 |
Speaker: | Derek Wu, TAMU |
Title: | New border rank lower bounds for GL(V) invariant tensors |
Date: | March 3, 2023 |
Time: | 1:00pm |
Location: | BLOC 628 |
Speaker: | Derek Wu, TAMU |
Title: | New border rank lower bounds for GL(V) invariant tensors II |
Date: | March 10, 2023 |
Time: | 1:00pm |
Location: | BLOC 628 |
Speaker: | H. Huang, Auburn |
Title: | Syzygies of subpermanents |
Date: | March 24, 2023 |
Time: | 1:00pm |
Location: | BLOC 628 |
Speaker: | Arpan Pal, TAMU |
Title: | Toric Structure in Statistical Models through Symmetry Lie Algebra |