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Multiple orthogonal polynomials, string equations and the large-n limit

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 نشر من قبل Luis Martinez
 تاريخ النشر 2008
  مجال البحث فيزياء
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The Riemann-Hilbert problems for multiple orthogonal polynomials of types I and II are used to derive string equations associated to pairs of Lax-Orlov operators. A method for determining the quasiclassical limit of string equations in the phase space of the Whitham hierarchy of dispersionless integrable systems is provided. Applications to the analysis of the large-n limit of multiple orthogonal polynomials and their associated random matrix ensembles and models of non-intersecting Brownian motions are given.



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