Exotic aspherical 4-manifolds
Speaker:
Mike Davis, The Ohio State University
Date and Time:
Friday, August 1, 2025 - 9:30am to 10:20am
Location:
Fields Institute, Room 230
Abstract:
I will explain the construction of a pair of closed smooth aspherical 4-manifolds which are homeomorphic but not diffeomorphic. There are infinitely many such pairs. The construction uses the Reflection Group Trick. This is joint work Kyle Hayden, Jingyin Huang, Daniel Ruberman, and Nathan Sunukjian.
