Jan 24 2025

Departmental Colloquium: Atoroidal Surface bundles, by Chris Leininger

January 24, 2025

3:00 PM - 3:50 PM

Location

636 SEO

Address

Chicago, IL

Calendar

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Chris Leininger (Rice University): Atoroidal Surface bundles

I will discuss joint work with Autumn Kent in which we establish the existence of purely pseudo-Anosov surface subgroups of mapping class groups. We do this by constructing a type-preserving representation of the figure eight knot group into the mapping class group of the thrice-punctured sphere. As a corollary we obtain the first examples of closed atoroidal surface bundles over surfaces.

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