paper

A Dynamic Programming Approach to the Parisi Functional

arXiv:1502.04398 · doi:10.1090/proc/12968

Abstract

G.Parisi predicted an important variational formula for the thermodynamic limit of the intensive free energy for a class of mean field spin glasses. In this paper, we present an elementary approach to the study of the Parisi functional using stochastic dynamic programing and semi-linear PDE. We give a derivation of important properties of the Parisi PDE avoiding the use of Ruelle Probability Cascades and Cole-Hopf transformations. As an application, we give a simple proof of the strict convexity of the Parisi functional, which was recently proved by Auffinger and Chen in [2].

Edits to take in to account referee's comments and suggestions. To appear in Proceedings of the AMS

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