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Graduate Student Geometry-Topology Seminar

Friday, October 18, 2019 - 2:00pm

Andres Mejia

University of Pennsylvania


University of Pennsylvania

4N30 DRL

Several problems in discrete geometry admit striking solutions coming from equivariant topology.  We will unify some of these solutions through the Configuration-Space/Test Map (CS/TM) setup, thus reducing combinatorial or geometric facts to showing the nonexistence of certain G-equivariant maps.  We pay special attention to how generalizations of the traditional ham-sandwich theorem fit into this paradigm by leveraging the theory of characteristic classes.