A master theorem for topological zeta functions of matroids
Abstract
We study the topological zeta function of a loopless matroid M and its Möbius transform. We provide a novel and manifest description (a ``Master Theorem'') for both functions and all of their coefficients, which can be used to give transparent solutions to several open questions and conjectures on topological zeta functions of matroids, even in greater generality than what was anticipated. As applications we solve conjectures of van der Veer (2019), Kutler (2023), and Mengesha, Miranda, and Sun (2026).
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