Topology Seminar: Ben Antieau
Topic
de Rham cohomology of classifying spaces and the period-index problem.
Speakers
Details
I will describe how to use the recent theory of prismatic cohomology of Bhatt--Morrow--Scholze to say something about the de Rham cohomology of classifying spaces of algebraic groups such as PGL_p in characteristic p. This leads to interesting new phenomena, including new obstruction classes to period=index for p-torsion classes in characteristic p.
Additional Information
Location: ESB 4133 (PIMS Lounge)
Ben Antieau, University of Illinois at Chicago
Ben Antieau, University of Illinois at Chicago
This is a Past Event
Event Type
Scientific, Seminar
Date
April 3, 2019
Time
-
Location