Event Type:

Geometry-Topology Seminar

Date/Time:

Monday, February 1, 2016 - 12:00 to 13:00

Location:

WNGR 201

Local Speaker:

Abstract:

The mod p cohomology of a space is an algebra over the Steenrod algebra A of cohomology operations, containing much additional information. So too are the Dickson algebras of polynomial invariants under the natural action of the general linear groups. We ask what the global structure of these A-algebras is, and will answer the question for p=2 by discovering an attractive description of minimal A-algebra generators and relations for the Dickson algebras. (This talk is independent of and nonoverlapping with the departmental colloquium talk to be given by Dr. Pengelley on Jan 25.)