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Hermitean matrix model free energy: Feynman graph technique for all genera

L. Chekhov, B. Eynard

hep-tharXiv:hep-th/0504116

Abstract

We present a diagrammatic technique for calculating the free energy of the Hermitian one-matrix model to all orders of 1/N expansion in the case where the limiting eigenvalue distribution spans arbitrary (but fixed) number of disjoint intervals (curves).

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