Genus Expansions of Hermitian One-Matrix Models: Fat Graphs vs. Thin Graphs (1809.10870v1)

Published 28 Sep 2018 in math-ph and math.MP

Abstract: We consider two different genus expansions of the free energy functions of Hermitian one-matrix models, one using fat graphs, one using ordinary graphs (thin graphs). Some structural results are first proved for the thin version of genus expansion using renormalized coupling constants, and then applied to the fat version.

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Authors (1)

Jian Zhou

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