Asymptotics for a special solution of the thirty fourth Painleve equation

Abstract

In a previous paper we studied the double scaling limit of unitary random matrix ensembles of the form Z_{n,N}^{-1} |\det M|^{2α} e^{-N \Tr V(M)} dM with α> -1/2. The factor |\det M|^{2α} induces critical eigenvalue behavior near the origin. Under the assumption that the limiting mean eigenvalue density associated with V is regular, and that the origin is a right endpoint of its support, we computed the limiting eigenvalue correlation kernel in the double scaling limit as n, N \to \infty such that n^{2/3}(n/N-1) = O(1) by using the Deift-Zhou steepest descent method for the Riemann-Hilbert problem for polynomials on the line orthogonal with respect to the weight |x|^{2α} e^{-NV(x)}. Our main attention was on the construction of a local parametrix near the origin by means of the ψ-functions associated with a distinguished solution u_α of the Painleve XXXIV equation. This solution is related to a particular solution of the Painleve II equation, which however is different from the usual Hastings-McLeod solution. In this paper we compute the asymptotic behavior of u_α(s) as s \to \pm \infty. We conjecture that this asymptotics characterizes u_α and we present supporting arguments based on the asymptotic analysis of a one-parameter family of solutions of the Painleve XXXIV equation which includes u_α. We identify this family as the family of tronquee solutions of the thirty fourth Painleve equation.

44 pages, 11 figures

References in corpus (3)

• Universality for eigenvalue correlations at the origin of the spectrum
• Quasi-linear Stokes phenomenon for the second Painlevé transcendent
• Quasi-linear Stokes phenomenon for the Hastings-McLeod solution of the second Painlevé equation

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