The seminar meets on selected Fridays 4:00-5:00 PM at the CUNY Graduate Center, room 4214.03 (math thesis room). The CUNY Graduate Center is located at 365 Fifth Avenue, New York, NY 10016.
Organizers:
Laura Ghezzi, New York City College of Technology and the Graduate Center (CUNY), laura.ghezzi58@citytech.cuny.edu
Hans Schoutens, New York City College of Technology and the Graduate Center (CUNY), hschoutens@citytech.cuny.edu
Fei Ye, Queensborough Community College and the Graduate Center (CUNY), feye@qcc.cuny.edu
Spring 2025 dates: February 28, March 14, March 28, April 25, May 9
February 28, 2025 GC 4214.03
Speaker: Andrew Stout, BMCC (CUNY)
Title: Jets of Local Complete Intersection Morphisms
Abstract: I will give the natural conditions for which the enriched Hom functor (the jet operator) induces a local complete intersection (LCI) morphism given a LCI morphism of schemes. This subsumes my previous work on induced flatness. In addition, it turns out that this is the relativized version of well-known results of Mustata which were used by Eisenbud and Frenkel to prove an important generalization of a theorem of Kostant concerning the nilpotent cone of a Lie algebra. This talk will be accessible to a general mathematical audience.
March 14, 2025 GC 4214.03
Speaker: Fanjun Meng, Johns Hopkins University
Title: Wall crossing for moduli of stable pairs
Abstract: Hassett showed that there are natural reduction morphisms between moduli spaces of weighted pointed stable curves when we reduce weights. I will discuss some joint work with Ziquan Zhuang which constructs similar morphisms between moduli of stable pairs in higher dimension.
March 28, 2025 GC 4214.03
Speaker: Sylvan Crane and Alexis Menenses
Title: TBA
Abstract: TBA
April 25, 2025 GC 4214.03
Speaker: TBA
Title: TBA
Abstract: TBA
May 9, 2025 GC 4214.03
Speaker: James Myer, CUNY Graduate Center
Title: TBA
Abstract: TBA
