Abstract
We study special polynomials used to represent rational solutions of the hierarchy of the second Painlevé equation. We find several recursion relations satisfied by these polynomials. In particular, we obtain a differential-difference relation that allows finding any polynomial recursively. This relation is an analogue of the Toda chain equations.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 153, No. 1, pp. 58–67, October, 2007.
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Demina, M.V., Kudryashov, N.A. Special polynomials and rational solutions of the hierarchy of the second Painlevé equation. Theor Math Phys 153, 1398–1406 (2007). https://doi.org/10.1007/s11232-007-0123-z
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DOI: https://doi.org/10.1007/s11232-007-0123-z