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arXiv · 1811.11677

Ultradiscrete limit of the spectral polynomial of the $q$-Heun equation

Kentaro Kojima·Tsukasa Sato·Kouichi Takemura
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Abstract

It is known that the q-Heun equation has polynomial-type solutions in some special cases, and the condition for the accessory parameter E is described by the roots of the spectral polynomial. We investigate the spectral polynomial by considering the ultradiscrete limit.

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Kentaro Kojima, Tsukasa Sato, Kouichi Takemura. 2019-03-06. Ultradiscrete limit of the spectral polynomial of the $q$-Heun equation. https://arxiv.org/abs/1811.11677

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