Uniform asymptotics of the coefficients of unitary moment polynomials

Details Uniform asymptotics of the coefficients of unitary moment polynomials Uniform asymptotics of the coefficients of unitary moment polynomials

2010-05-24

arxiv.org/abs/1005.4401v8

Physics

Mathematical Physics

31 pages, 1 figure, 2 tables. A few minor misprints fixed

Scientific paper

Keating and Snaith showed that the $2k^{th}$ absolute moment of the characteristic polynomial of a random unitary matrix evaluated on the unit circle is given by a polynomial of degree $k^2$. In this article, uniform asymptotics for the coefficients of that polynomial are derived, and a maximal coefficient is located. Some of the asymptotics are given in explicit form. Numerical data to support these calculations are presented. Some apparent connections between random matrix theory and the Riemann zeta function are discussed.

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