Authors: Peter J Forrester Eric M Rains
Publish Date: 2011/08/18
Volume: 309, Issue: 3, Pages: 771-792
Abstract
We characterize averages of prod l=1Nx t lalpha 1 with respect to the Selberg density further constrained so that t l in 0x l=1dotsq and t l in x1 l=q+1dotsN in terms of a basis of solutions of a particular Fuchsian matrix differential equation By making use of the DotsenkoFateev integrals the explicit form of the connection matrix from the Frobenius type power series basis to this basis is calculated thus allowing us to explicitly compute coefficients in the power series expansion of the averages From these we are able to compute power series for the marginal distributions of the t j j=1dotsN In the case q = 0 and α 1 we compute the explicit leading order term in the x to 0 asymptotic expansion which is of interest to the study of an effect known as singularity dominated strong fluctuations In the case q = 0 and alpha in mathbbZ+ and with the absolute values removed the average is a polynomial and we demonstrate that its zeros are highly structured
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