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Bibliographic Details
Main Authors: Galgano, Vincenzo, Keneshlou, Hanieh, Michalek, Mateusz
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2302.04598
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Table of Contents:
  • By the work of J.Huh, one can interpret binomial coefficients as a solution to an intersection problem on a permutohedral variety $X_E$. Applying Hirzebruch-Riemann-Roch, this intersection problem is equivalent to computing Euler characteristic of a specific element of $K$-theory of $X_E$. This element has a natural lifting to equivariant $K$-theory and thus the Euler characteristic may be upgraded to a Laurent polynomial. We provide and implement three different approaches, in particular a recursive one, to computing these polynomials.