In this paper, we focus on the relationship between the fifth Painleve equation and a Jacobi weight perturbed with random singularities, w(z) = (1 - z(2))(alpha) e(-t/z2-k2), z, k is an element of [-1, 1], alpha, t > 0. By using the ladder operator approach, we obtain that an auxiliary quantity R-n(t), which is closely related to the recurrence coefficients of monic polynomials orthogonal with w(z), satisfies a particular Painleve V equation. (C) 2021 Elsevier Ltd. All rights reserved.
机构:
Univ Grenoble 1, Inst Fourier, UMR 5582, CNRS, F-38402 St Martin Dheres, FranceUniv Grenoble 1, Inst Fourier, UMR 5582, CNRS, F-38402 St Martin Dheres, France