Title of article :
Universality in the bulk holds close to given points Original Research Article
Author/Authors :
D.S. Lubinsky، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Abstract :
Let μμ be a measure with compact support. Assume that ξξ is a Lebesgue point of μμ and that μ′μ′ is positive and continuous at ξξ. Let {An}{An} be a sequence of positive numbers with limit ∞∞. We show that one can choose View the MathML sourceξn∈[ξ−Ann,ξ+Ann] such that
View the MathML sourcelimn→∞Kn(ξn,ξn+aK̃n(ξn,ξn))Kn(ξn,ξn)=sinπaπa,
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uniformly for aa in compact subsets of the plane. Here KnKn is the nnth reproducing kernel for μμ, and View the MathML sourceK̃n is its normalized cousin. Thus universality in the bulk holds on a sequence close to ξξ, without having to assume that μμ is a regular measure. Similar results are established for sequences of measures.
Keywords :
orthogonal polynomials , Universality limits , Random matrices
Journal title :
Journal of Approximation Theory
Journal title :
Journal of Approximation Theory