Topology Seminar

Title: Universal Toda brackets of ring spectra
Speaker: Steffen Sagave
Speaker Info: Mathematisches Institut Bonn
Brief Description:
Special Note:

Motivated by a construction of Benson, Krause and Schwede for differential graded algebras I will define the universal Toda bracket of a ring spectrum R. This is a certain cohomology class in a graded version of the topological Hochschild cohomology of the ring of homotopy groups of R. The class contains information about the question whether a module over the homotopy groups of R arises as the homotopy groups of an R-module spectrum. As an example, I will consider the real K-theory spectrum. I will also indicate how to handle higher universal Toda brackets for periodic ring spectra.
Date: Monday, October 17, 2005
Time: 4:10pm
Where: Lunt 104
Contact Person: Prof. Paul Goerss
Contact email: pgoerss@math.northwestern.edu
Contact Phone: 847-491-8544
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