Khovanov skein lasagna modules and exotica

Series
Geometry Topology Seminar
Time
Monday, April 6, 2026 - 4:30pm for 1 hour (actually 50 minutes)
Location
Skiles 006
Speaker
Michael Willis – Texas A&M University
Organizer
Shunyu Wan

In this talk I will outline some computations and applications involving Khovanov and Lee skein lasagna modules, including the detection of some exotic pairs of 4-manifolds.  This work is joint with Qiuyu Ren.  If time allows I will also discuss a new version of the lasagna module which should ease the computational complexity for manifolds with 1-handles.  This work is joint with Qiuyu Ren, Ian Sullivan, Paul Wedrich, and Melissa Zhang.