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Padé approximants of random Stieltjes series

2007
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Proceedings of the Royal Society A
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We consider the random continued fraction S(t) := 1/(s_1 + t/(s_2 + t/(s_3 + >...))) where the s_n are independent random variables with the same gamma distribution. For every realisation of the sequence, S(t) defines a Stieltjes function. We study the convergence of the finite truncations of the continued fraction or, equivalently, of the diagonal Pade approximants of the function S(t). By using the Dyson--Schmidt method for an equivalent one-dimensional disordered system, and the results of

doi:10.1098/rspa.2007.0014
fatcat:4mlakvwa3jdixgmzpwth6lfzym