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Bispectrality of $AG_2$ Calogero-Moser-Sutherland system

Mathematical Physics 2022-12-07 v1 math.MP Quantum Algebra Exactly Solvable and Integrable Systems

Abstract

We consider the generalised Calogero-Moser-Sutherland quantum integrable system associated to the configuration of vectors AG2AG_2, which is a union of the root systems A2A_2 and G2G_2. We establish the existence of and construct a suitably defined Baker-Akhiezer function for the system, and we show that it satisfies bispectrality. We also find two corresponding dual difference operators of rational Macdonald-Ruijsenaars type in an explicit form.

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Cite

@article{arxiv.2204.03677,
  title  = {Bispectrality of $AG_2$ Calogero-Moser-Sutherland system},
  author = {Misha Feigin and Martin Vrabec},
  journal= {arXiv preprint arXiv:2204.03677},
  year   = {2022}
}

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25 pages