Kannan, Kühne — The $\Mathbbs} N$-Equivariant Chow Polynomial Of The Braid Matroid (2025)

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Siddarth Kannan, Lukas Kühne. The $\mathbbS}_n$-Equivariant Chow Polynomial of the Braid Matroid. arXiv. 2025.

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Abstract

We determine the generating function for the Sn-equivariant Chow polynomials of the braid matroid Bn, using a modular interpretation of this polynomial recently given by Devkota, Robotis, and Zahariuc. We also give a new modular interpretation of the numerical Chow polynomial of Bn in terms of a certain moduli space of genus-zero relative stable maps to P1.