{ "id": "1308.5516", "version": "v1", "published": "2013-08-26T08:54:34.000Z", "updated": "2013-08-26T08:54:34.000Z", "title": "Moderate deviations for spectral measures of random matrix ensembles", "authors": [ "Jan Nagel" ], "comment": "20 pages", "categories": [ "math.PR" ], "abstract": "In this paper we consider the (weighted) spectral measure $\\mu_n$ of a $n\\times n$ random matrix, distributed according to a classical Gaussian, Laguerre or Jacobi ensemble, and show a moderate deviation principle for the standardised signed measure $\\sqrt{n/a_n}(\\mu_n -\\sigma)$. The centering measure $\\sigma$ is the weak limit of the empirical eigenvalue distribution and the rate function is given in terms of the $L^2$-norm of the density with respect to $\\sigma$. The proof involves the tridiagonal representations of the ensembles which provide us with a sequence of independent random variables and a link to orthogonal polynomials.", "revisions": [ { "version": "v1", "updated": "2013-08-26T08:54:34.000Z" } ], "analyses": { "subjects": [ "60B20", "60F10" ], "keywords": [ "random matrix ensembles", "spectral measure", "moderate deviation principle", "independent random variables", "rate function" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1308.5516N" } } }