Student Algebraic Geometry Seminar: Points, lines, planes, etc

Seminar | February 13 | 4-5 p.m. | 891 Evans Hall

Chris Eur, UC Berkeley

Department of Mathematics

We present a recent proof by June Huh and Botong Wang of the Dowling-Wilson conjecture, a classical enumeration problem in projective space which originated from de Bruijn and Erdös. We define the Mobius ring and the Chow ring associated to a configuration of points in $\mathbb P ^ n$ and discuss one can deduce the conjecture from the classical Hard Lefschetz theorem by walking along simplices, permutahedrons, and cubes with tools from toric geometry.

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