CUNY Geometry and Topology Seminar

2025 — 2026

Unless a change is noted below, the CUNY Geometry and Topology Seminar takes place at 4:15pm on Tuesdays in Room 6417 of the Graduate Center, located at 365 Fifth Avenue across the street from the Empire State Building (seminar reminders will be emailed to those on the seminar mailing list). All are welcome.

Click on the title of a talk for the abstract (if available).


2025-2026
February 10, 2026 Pratit Goswami (Oklahoma) Dehn Functions of Coabelian Subgroups
February 17, 2026 No seminar today CUNY closed
February 24, 2026 No seminar today Today's talk is rescheduled to March 24 due to snow.
March 3, 2026 Alex Wright (UMich) Moduli of cubic surfaces and geometric group theory
March 10, 2026 Rama Mishra (IISER Pune) Invariants for knots in RP^3
March 17, 2026 Marina Ville (Paris Est) Statistics on the Casson invariant of some knot models
March 24, 2026 Olga Kharlampovitch (CUNY) First-order sentences in random groups
March 31, 2026 No seminar today
April 7, 2026 No seminar today CUNY closed
April 14, 2026 Yikai Teng (Rutgers) Khovanov homology and exotic planes
April 21, 2026 No seminar today CUNY on Thursday schedule
April 28, 2026 Sriram Raghunath (Rutgers) Symplectic Khovanov homology of periodic links
May 5, 2026
Special Time: 2:45-3:45pm Room: 5417		 Robert Lipshitz (Oregon) Symmetries and Heegaard Floer homology
Fall 2025:
September 9, 2025 Michael Kopreski (Bilbao) Geometric models for infinite-type surface mapping class groups
September 16, 2025
Special Time: 2:45-3:45pm 		Tarik Aougab (Haverford) Sharp bounds for 1-systems
September 23, 2025 No seminar today
September 30, 2025 Nick Vlamis (CUNY) Strongly bounded generation in transformation groups
October 7, 2025
Talk 1: 1:30-2:30pm
Room: 4214.03 		Grace Garden (Jussieu-Paris) Character varieties and essential surfaces in arbitrary characteristic
October 7, 2025
Talk 2: 4:15-5:15pm		 Neil Hoffman (Minnesota) Alternating Quotients of Twist Knot Groups
October 14, 2025 No seminar today CUNY on Monday schedule
October 21, 2025 Joe Boninger (Boston College) The Burau Representation, Knot Floer Homology, and Quantum gl(1|1)
October 28, 2025 Sangrok Oh (Basque) Right-angled Artin groups in hierarchically hyperbolic groups
November 4, 2025 Tam Cheetham-West (Yale) Finite covers and boundary slopes of cusped hyperbolic 3-manifolds
November 11, 2025 Sayantika Mondal (CUNY) Measuring Complexity: From Simplicial Distances to 3-Manifold Invariants
November 18, 2025 Zhenghao Rao (Rutgers) Incompressible surfaces in closed hyperbolic manifolds
November 25, 2025 Thomas Ng (Brandeis) Random quotients preserve negative curvature
December 2, 2025 Rostislav Akhmechet (Columbia) Annular sl(3) web algebras


Related student seminars:

Reading Seminar on Hyperbolic 3-manifolds


Schedule from previous years.

Related seminars in the NYC area:


This seminar is partially supported by the National Science Foundation and the Simons Foundation.
This page is maintained by Jason Behrstock, to whom errors in the page should be reported.