Universal Objects for the Thurston Geometries.
Daryl Cooper
University of California, Santa Barbara
https://web.math.ucsb.edu/~cooper/
Date(s) : 13/11/2025 iCal
11h00 - 12h00
Branched manifolds were introduced by Bob Williams
in his study of dynamical systems, and generalize the notion
of train tracks. Let G be one of the eight Thurston geometries.
There is a branched 3-manifold W(G) with a finite triangulation such that
a closed 3-manifold M immerses into W(G) if and only if M admits a G-structure.
a closed 3-manifold M immerses into W(G) if and only if M admits a G-structure.
Equivalently there is a combinatorial characterization of those
manifolds that admit a G-structure.
This is joint with Priyam Patel and Leslie Mavrakis.
Emplacement
I2M Saint-Charles - Salle de séminaire
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