Tuesday, January 16, 2018
3:00 pm
Building 15, Room 105

Geometry and Topology Seminar

Section problems for surface bundles
Lei Chen, Department of Mathematics, University of Chicago

Surface braid group is the analog of braid group on a closed surface. There is a natural map from n-strand surface braid group to m-strand by forgetting the extra strands. We will first talk about a classification of homomorphism between surface braid groups and show that forgetful maps are the only surjective maps. Then using this, we will discuss section problems of some universal surface bundles.

Contact Mathematics Department mathinfo@caltech.edu at 626-395-4335
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