@taka3617

Hodge-Riemann relations for Potts model partition functions

, and . (2018)cite arxiv:1811.01696Comment: 7 pages.

Abstract

We prove that the Hessians of nonzero partial derivatives of the (homogenous) multivariate Tutte polynomial of any matroid have exactly one positive eigenvalue on the positive orthant when $0<q1$. Consequences are proofs of the strongest conjecture of Mason and negative dependence properties for $q$-state Potts model partition functions.

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Hodge-Riemann relations for Potts model partition functions

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