Abstract
We investigate the moments of the derivative, on the unit circle, of characteristic polynomials of random unitary matrices and use this to formulate a conjecture for the moments of the derivative of the Riemann ζ function on the critical line. We do the same for the analogue of Hardy’s Z-function, the characteristic polynomial multiplied by a suitable factor to make it real on the unit circle. Our formulae are expressed in terms of a determinant of a matrix whose entries involve the I-Bessel function and, alternately, by a combinatorial sum.
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Conrey, J.B., Rubinstein, M.O. & Snaith, N.C. Moments of the Derivative of Characteristic Polynomials with an Application to the Riemann Zeta Function. Commun. Math. Phys. 267, 611–629 (2006). https://doi.org/10.1007/s00220-006-0090-5
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DOI: https://doi.org/10.1007/s00220-006-0090-5