All Seminars & Colloquia
Logic Seminar-Effective Ultrapowers of Function Structures
Thursday, 10/13/2022, 3:00pm - 11:59pm
Time: Thursday, October 13, 11:00 am-12:00 noon
Place: Smith 120
Speaker: Keshav Srinivasan, GWU
Title: Effective Ultrapowers of Function Structures
Friday, 10/7/2022, 8:00pm - 11:59pm
Title: From the U.S. Senate to Port-au-Prince, Haiti: A Mathematician's Journey in Government
Speaker: Dr. Margaret Callahan, Bureau of Conflict and Stabilization Operations, U.S. Department of State
Date and time: Friday, October 7, 4-5 p.m.
Place: Funger Hall, Room 108
Abstract:
Logic Seminar: A two-cardinal Ramsey operator on ideals
Thursday, 10/6/2022, 3:00pm - 11:59pm
Time: Thursday, October 6, 11:00 am-12:00 noon
Place: Smith 120
Speaker: Philip White, GWU
Title: A two-cardinal Ramsey operator on ideals
Graduate Student Seminar-First Seminar of Semester
Wednesday, 10/5/2022, 8:00pm - 11:59pm
First Graduate Student Seminar
Wednesday, October 5th 4-5 p.m.
Philips 771
Announcement: We are going to have our first graduate student experience seminar (the mandatory GSE seminar) — a graduate student mixer — next Wednesday. It will be a great opportunity for us to share our experience on teaching and research with our colleagues and get our questions and concerns rising in the first month of the Fall semester resolved. Professors will also join us.
Logic-Topology Seminar: Complexity in knot theory
Monday, 10/3/2022, 8:45pm - 11:59pm
Time: Monday, October 3, 4:45-6:00 pm
Place: Rome Hall 350
Speaker: Jozef Przytycki, GWU
Title: Complexity in knot theory
Applied Math Seminar-Mean-Field Games for Scalable Computation and Diverse Applications
Friday, 9/30/2022, 7:30pm - 11:59pm
Date and and Time: Friday, Sep. 30th , 3:30-4:30 pm
Place: Zoom
Zoom link: https://gwu-edu.zoom.us/j/95630895609
Title: Mean-Field Games for Scalable Computation and Diverse Applications
Speaker(s): Wuchen Li (University of South Carolina, Mathematics)
Logic Seminar-Ultrapower construction of the hyperreals
Thursday, 9/15/2022, 3:00pm - 11:59pm
Time: Thursday, September 15, 11:00 am-12:00 noon
Place: Smith 120
Speaker: Henry Klatt, GWU
Title: Ultrapower construction of the hyperreals
Combinatorics Seminar-Twisting Preregular Forms by 2-Cocycles
Friday, 9/9/2022, 8:00pm - 11:59pm
Title: Twisting Preregular Forms by 2-Cocycles
Speaker: Charlotte Ure, UVA
Date and time: Friday, September 9, 4–5 pm
Place: Rome 204
Abstract: As a dual notion to Drinfeld twists, the cocycle twist of a Hopf algebra is obtained by deforming the algebra structure. Furthermore, if the Hopf algebra acts on an algebra, one may twist the algebra by the same cocycle. In this talk, I will explain how this procedure relates to the construction of superpotential algebras associated to preregular forms and their Manin’s universal quantum groups.
Combinatorics and Algebra Seminar-The Sticky Matroid Conjecture
Wednesday, 7/6/2022, 7:00pm - 11:59pm
Title: The Sticky Matroid Conjecture
Speaker: Jaeho Shin, Korean Institute for Advanced Study
Date and time: Wednesday, July 6, 3-4 pm
Place: Phillips 736
Abstract: We show Kantor's conjecture (1974) holds in rank 4. This proves both the sticky matroid conjecture of Poljak and Turzík (1982) and the whole Kantor's conjecture, due to an argument of Bachem, Kern, and Bonin, and an equivalence argument of Hochstättler and Wilhelmi, respectively.
Friday, 4/29/2022, 7:00pm - 11:59pm
Title: Random Groups in Combinatorics and Number Theory and Cokernels of Random Matrices
Speaker: Nathan Kaplan, UC Irvine
Date and time: Friday, April 29, 3–4 pm
Place: Phillips 736
Abstract: How many sublattices of Zn have index at most X? If we choose such a lattice Λ at random, what is the probability that Zn/Λ is cyclic? Now let R be a random subring of Zn. What is the probability that Zn/R is cyclic?