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Hankel determinant structure of the rational solutions for fifth Painleve equationKeywords: Painleve equations , Hankel determinant structure , Umemura polynomials Abstract: In this paper, we construct the Hankel determinant representationof the rational solutions for the fifth Painlev′e equation through theUmemura polynomials. Our construction gives an explicit form of theUmemura polynomials σn for n ≥ 0 in terms of the Hankel Determinantformula. Besides, We compute the generating function of the entries interms of logarithmic derivative of the Heun Confluent Function.
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