Uniform asymptotics of the coefficients of unitary moment polynomials

作者：Hiary G A; Rubinstein M O^*

来源：Proceedings of the Royal Society A-Mathematical Physical and Engineering Sciences, 2011, 467(2128): 1073-1100.

DOI：10.1098/rspa.2010.0430

• uniform asymptotics
• unitary moment polynomials
• saddle point

Keating and Snaith showed that the 2kth 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 an explicit form. Numerical data to support these calculations are presented. Some apparent connections between the random matrix theory and the Riemann zeta function are discussed.

• 出版日期2011-4-8