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arXiv · 2312.00602

Polynomial tau-functions of the n-th Sawada-Kotera hierarchy

Victor Kac·Johan Van de Leur
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Abstract

We find all polynomial tau-functions of the n-th reduced BKP hierarchy (=n-th Sawada-Kotera hierarchy). The name comes from the fact that for n=3 the simplest equation of the hierarchy is the famous Sawada-Kotera equation.

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Victor Kac, Johan Van de Leur. 2024-02-13. Polynomial tau-functions of the n-th Sawada-Kotera hierarchy. https://arxiv.org/abs/2312.00602

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