Department of Mathematics

Department of Mathematics Seminars and Talks

 

Seminar

Algebraic Geometry Seminar

Talk Information
Title
Condensed Whitehead's problem
Start date and time
11:10 on Wednesday April 16, 2025
Duration in minutes
50 (until 12:00 on Wednesday April 16, 2025)
Room
BAB024, Bahen Center, 40 St. George St.
Streaming link
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Abstract

Clausen and Scholze showed that a condensed form of Whitehead's problem has a positive answer. Recently, Bergfalk, Lambie-Hanson and Saroch gave a set theoretic formulation and proof of this theorem. We give an alternative set theoretic proof which shows a close connection with a proof of Shelah's theorem that V=L implies that all Whitehead groups are free.

Speaker Information
Full Name
Spencer Unger
Personal website
Institution
University of Toronto
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