43rd Workshop in Geometric Topology 2026
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at Utah Valley University
June 18–20, 2026
Utah Valley University is hosting the 43rd Annual Workshop in Geometric Topology 2026 from June 18 to June 20
The workshop programming begins at 9:00 a.m. on Thursday, June 18, and ends at noon on Saturday, June 20. Each day there will be a one-hour lecture by Principal Speaker Dan Margalit as well as contributed talks by participants. The program is designed so there will be ample time for informal networking among participants. The workshop ends on Saturday with a problem session. For those staying until Sunday, we will have a selection of outdoor activities followed by dinner.
- Workshop Schedule [coming soon]
- Talk Abstracts [coming soon]
Principal Speaker: Dan Margalit
Title: Reconstruction problems in mathematics
Abstract: One important type of mathematics problem is the recovery of complete information from bits of partial information, for example recovering a 3D image from the 2D snapshots taken in a CAT scan. In this series of talks, we will consider three such reconstruction problems in geometry, group theory, and topology. We will begin with a theorem of Darboux characterizing linear transformations of the plane in terms of their actions on triples of points (geometry). We will then discuss a theorem of Kolay characterizing homomorphisms from the braid group to a finite group (group theory). Finally, we will explain a recent result characterizing homeomorphisms of a surface in terms of a combinatorial object, the fine curve graph. The intended audience is any undergraduate with an interest in mathematics.
Contributed Talks
Contributed Talks
Participants are invited to contribute talks. Time will be allotted each day for 20-minute talks by participants. Abstracts may be entered on the registration form below [coming soon].
Financial Support
Financial Support
The 43nd Annual Workshop in Geometric Topology is supported by the National Science Foundation grant no. 2350374. Financial support may be available to cover partial travel and living expenses of participants who do not have other funding for their research. Such support can be requested on the registration form below. To receive full consideration, requests for support should be submitted by April 19, 2026. Graduate students and recent PhDs in geometric topology are especially encouraged to apply.
Deadlines
Deadlines
Requests for Financial Support: April 19, 2026
Requests for Contributed Talks: May 19, 2026
Registration
Registration
Organizers
Organizers
Fredric Ancel, University of Wisconsin-Milwaukee
Jack Calcut, Oberlin College
Greg Friedman, Texas Christian University
Craig Guilbault, University of Wisconsin-Milwaukee
Wiktor Mogilski, Utah Valley University
Molly Moran, Colorado College
Nathan Sunukjian, Calvin University
Local Contact
Local Contact
Contact Wiktor Mogilski (Wiktor.Mogilski@uvu.edu) if you have questions about the workshop.
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