most citedUltradiscrete limit of the spectral polynomial of the -Heun equation

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math.CA2018★ 2 cited

Ultradiscrete limit of the spectral polynomial of the -Heun equation

Kentaro Kojima, Tsukasa Sato, Kouichi Takemura

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…

math.CA2018★ 2 cited

Polynomial solutions of -Heun equation and ultradiscrete limit

Kentaro Kojima, Tsukasa Sato, Kouichi Takemura

We study polynomial-type solutions of the -Heun equation, which is related with quasi-exact solvability. The condition that the -Heun equation has a non-zero polynomial-type…