University of Birmingham > Talks@bham > Combinatorics and Probability Seminar > Matroid valuations and where to see them

Matroid valuations and where to see them

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  • UserAlex Fink, London
  • ClockThursday 17 November 2022, 15:00-16:00
  • HouseLTC.

If you have a question about this talk, please contact Johannes Carmesin.

Valuativity is a set of equations that a function on matroids may satisfy, of similar flavour to (in fact more general than) having a deletion-contraction recurrence. The condition arises from the polyhedral perspective on matroids introduced by Edmonds, but turns up in several other algebraic and geometric perspectives on matroid theory, such as combinatorial Hopf algebras, and the matroid Chow rings central to June Huh’s Fields medal work. I’ll give a survey of these connections and some of my work in the area.

This talk is part of the Combinatorics and Probability Seminar series.

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