MSI Colloquium

Sperner's Lemma: old and new proofs, generalizations, and surprising applications

MSI Colloquium, where the school comes together for afternoon tea before one speaker gives an accessible talk on their subject

schedule Date & time
Date/time
24 Apr 2024 4:00pm - 24 Apr 2024 5:00pm
person Speaker

Speakers

Francis Su (Harvey Mudd College & Sydney Mathematics Research Institute)
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Description

Who doesn't like one of these three: geometry, topology, and combinatorics? And even if you don't, you will still love Sperner's lemma, which is a combinatorial statement that is equivalent to the Brouwer fixed point theorem in topology. I'll explain what it is, why it's so amazing, give heartwarming old and new proofs, and present a recent generalization to polytopes that has surprised me with diverse applications: to the study of triangulations, to fair division problems, and the Game of Hex.

Location

Room 1.33 (Seminar Room), Hanna Neumann Building 145, Science Road, ANU

-35.275389387895, 149.11926090717

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