Random matrix theory and the zeros of zeta'(s)

Details Random matrix theory and the zeros of zeta'(s) Random matrix theory and the zeros of zeta'(s)

2002-07-29

arxiv.org/abs/math-ph/0207044v2

J. Phys. A: Math. Gen., Vol. 36 (2003), 2945-2962 (Special Issue on RMT)

Physics

Mathematical Physics

18 pages, 5 figures. Revised version: section 4 expanded; minor corrections

Scientific paper

10.1088/0305-4470/36/12/306

We study the density of the roots of the derivative of the characteristic polynomial Z(U,z) of an N x N random unitary matrix with distribution given by Haar measure on the unitary group. Based on previous random matrix theory models of the Riemann zeta function zeta(s), this is expected to be an accurate description for the horizontal distribution of the zeros of zeta'(s) to the right of the critical line. We show that as N --> infinity the fraction of roots of Z'(U,z) that lie in the region 1-x/(N-1) <= |z| < 1 tends to a limit function. We derive asymptotic expressions for this function in the limits x --> infinity and x --> 0 and compare them with numerical experiments.

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