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Stable homology of moduli spaces of manifolds

Introductory Workshop: Algebraic Topology January 27, 2014 - January 31, 2014

January 31, 2014 (02:00 PM PST - 03:00 PM PST)
Speaker(s): Soren Galatius (Stanford University)
Location: MSRI:
Primary Mathematics Subject Classification No Primary AMS MSC
Secondary Mathematics Subject Classification No Secondary AMS MSC



I will discuss recent joint work with Oscar Randal-Williams, aimed at calculating the cohomology of BDiff(W) and related spaces, where W is a smooth 2n-dimensional manifold, Diff(W) is the topological group of diffeomorphisms of W, and BDiff(W) is its classifying space. Surprisingly, the cohomology ring turns out to be partially independent of W through a range of degrees (homological stability). In this talk, I will discuss how infinite loop spaces can be used to describe the cohomology in this stable range.

20110?type=thumb Galatius notes 5.95 MB application/pdf Download
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H.264 Video v1241.mp4 313 MB video/mp4 rtsp://videos.msri.org/data/000/019/805/original/v1241.mp4 Download
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