Realizing the Tutte polynomial as a cut-and-paste K-theoretic invariant

Fuente: arXiv
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Main Author: Lopez, Mauricio Gomez
Format: Preprint
Published: 2025
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author Lopez, Mauricio Gomez
author_facet Lopez, Mauricio Gomez
contents Cut-and-paste $K$-theory is a new variant of higher algebraic $K$-theory that has proven to be useful in problems involving decompositions of combinatorial and geometric objects, e.g., scissors congruence of polyhedra and reconstruction problems in graph theory. In this paper, we show that this novel machinery can also be used in the study of matroids. Specifically, via the $K$-theory of categories with covering families developed by Bohmann-Gerhardt-Malkiewich-Merling-Zakharevich, we realize the Tutte polynomial map of Brylawski (also known as the universal Tutte-Grothendieck invariant for matroids) as the $K_0$-homomorphism induced by a map of $K$-theory spectra.
format Preprint
id arxiv_https___arxiv_org_abs_2501_12250
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Realizing the Tutte polynomial as a cut-and-paste K-theoretic invariant
Lopez, Mauricio Gomez
K-Theory and Homology
Algebraic Topology
Combinatorics
Cut-and-paste $K$-theory is a new variant of higher algebraic $K$-theory that has proven to be useful in problems involving decompositions of combinatorial and geometric objects, e.g., scissors congruence of polyhedra and reconstruction problems in graph theory. In this paper, we show that this novel machinery can also be used in the study of matroids. Specifically, via the $K$-theory of categories with covering families developed by Bohmann-Gerhardt-Malkiewich-Merling-Zakharevich, we realize the Tutte polynomial map of Brylawski (also known as the universal Tutte-Grothendieck invariant for matroids) as the $K_0$-homomorphism induced by a map of $K$-theory spectra.
title Realizing the Tutte polynomial as a cut-and-paste K-theoretic invariant
topic K-Theory and Homology
Algebraic Topology
Combinatorics
url https://arxiv.org/abs/2501.12250