Seminar on Tuesday, February 21: Thomas Koberda

This Tuesday at 5:00, the seminar hosts Thomas Koberda of Harvard University.

Title: Mapping class groups and finite covers

Abstract: I will give a survey of results concerning the actions of a mapping class on the homology of various finite covers to which it lifts. I will draw connections to 3-manifold theory, especially largeness, growth of torsion homology and Alexander polynomials.

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