Original article at: http://www.math.washington.edu/~ejpecp/ECP/viewarticle.php?id=2157

Moderate deviations for traces of words in a mult-matrix model

Peter Eichelsbacher, Professor at Ruhr-University of Bochum
Jens Sommerauer,

Abstract

We prove a moderate deviation principle for traces of words of weakly interacting random matrices defined by a multi-matrix model with a potential being a small perturbation of the GUE. The remarkable strength of high order expansions of the matrix model recently found by Guionnet and Maurel-Segala is the key fact that allows us to develop our result and provides also an alternative proof for a special case of the central limit theorem for traces of words, studied in the article of Guionnet and Maurel-Segala (2006).

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Original article at: http://www.math.washington.edu/~ejpecp/ECP/viewarticle.php?id=2157