New Mexico State University

Monday, November 10

•  No Events

Tuesday, November 11

•  Graduate Student Seminar

5:00PM – 6:00PM

SH 235

The Graduate Student Seminar is designed to give graduate students a low-pressure environment to gain experience presenting their work to their peers, and to practice public speaking skills more generally. For any questions, Contact Trevor Jess at tkjess@nmsu.edu or Susan Harding at susaneh@nmsu.edu.

Interested in speaking? Fill out this form: https://forms.gle/w2WNNJ2XgaYApYgv8

Wednesday, November 12

•  Undergraduate Seminar

Hilbert's Hotel, Shift Operators, and Semigroup Representations

Boyu Li, NMSU

4:30PM – 5:30PM

Science Hall 112

Abstract: Hilbert’s Hotel has infinitely many rooms and is already full. Yet, with a clever strategy, the manager can still make space for new guests — even infinitely many of them. This classic paradox, introduced by David Hilbert in 1925, highlights a surprising aspect of infinity. In this talk, we will step into the manager’s shoes and explore different ways to accommodate these demanding guests and see how these ideas connect to shift operators and representations of semigroups.

Thursday, November 13

•  No Algebra Seminar

•  Probability Seminar for Graduate Students

Adina Oprisan

5:00PM – 6:00PM

SH 235

Friday, November 14

•  Analysis Seminar

C^*-correspondences for Ordinal Graphs

Benjamin Jones, Arizona State University

10:30AM – 11:30AM

Zoom ONLY. Link: https://nmsu.zoom.us/j/86991740746

Abstract: We consider C*-algebras of categories we call ordinal graphs which generalize directed graphs by allowing paths to have ordinal length. We present criteria for when the C*-algebra of an ordinal graph is naturally isomorphic to a Cuntz-Pimsner algebra. This condition also characterizes when certain homomorphisms from algebras of distinguished subcategories into the ordinal graph algebra are all simultaneously injective. We then describe how an application of these results leads to a slight generalization of a previous Cuntz-Krieger uniqueness theorem.

•  Colloquium

Finite Time Explosion for Stochastic Partial Differential Equations

Michael Salins, Boston University

12:00PM refreshments | 12:30PM – 1:20PM

SH 107 and Zoom. Link: https://nmsu.zoom.us/j/82329432705

Abstract: A solution to a differential equation explodes if it reaches infinite values in a finite amount of time. I outline the history of explosion problems for ordinary differential equations (ODEs), partial differential equations (PDEs), stochastic differential equations (SDEs) and I present some new results about explosion for stochastic partial differential equations (SPDEs).

•  Geometry and Topology Seminar

TBA

Jerry Lodder, NMSU

2:00PM – 3:00PM

SH 107 and Zoom. Link: https://nmsu.zoom.us/j/96482605257

Abstract: TBA

Saturday, November 15

•  Applied Math Seminar

12:15PM – 1:15PM

Zoom ONLY. Link: https://nmsu.zoom.us/j/88174028894

Notes: