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Talk

Computing degrees of Bergman fans in funny ways

  • Raul Penaguiao (MPI MiS, Leipzig)
S017 Universität Leipzig (Leipzig)

Abstract

There are several ways of computing the degree of varieties, but the most basic one is to intersect your variety with a line. We will be doing the same in the tropical world. With the techniques developed we will compute the likelihood degeneracy degree of a matroid and recover a result from Agostini et al.

In this talk, we will introduce the Bergman fan of a matroid, our tropical variety of interest, study its combinatorics, and identify its degree with the number of so called nbc bases.

Black text: “Lecture Series, Seminar on Algebra and Combinatorics”, with a green-yellow-orange color gradient in the background
seminar
15.10.26 14.01.27

Seminar on Algebra and Combinatorics Seminar on Algebra and Combinatorics

Universität Leipzig Uni P-701

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