Cohomological and motivic inclusion-exclusion
ALGEBRAIC GEOMETRY & NUMBER THEORY SEMINAR
Date:
Thursday, March 3, 2022 13:00 - 14:00
Speaker:
Ronno Das (University of Copenhagen)
Location:
Heinzel Seminar Room (I21.EG.101), Office Building West
Series:
Mathematics and CS Seminar
Host:
Tim Browning
Contact:
Birgit Oosthuizen-Noczil
We categorify the inclusion-exclusion principle for partially ordered topological spaces and schemes to obtain spectral sequences that generalize the two spectral sequences of a stratified space and certain Vassiliev-type spectral sequences. We also obtain Euler characteristic analogs in the Grotendieck ring of varieties. The work is joint with Sean Howe.