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arXiv · 1811.08717

Spin versions of the complex trigonometric Ruijsenaars-Schneider model from cyclic quivers

Maxime Fairon
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Abstract

We study multiplicative quiver varieties associated to specific extensions of cyclic quivers with $m\geq 2$ vertices. Their global Poisson structure is characterised by quasi-Hamiltonian algebras related to these quivers, which were studied by Van den Bergh for an arbitrary quiver. We show that the spaces are generically isomorphic to the case $m=1$ corresponding to an extended Jordan quiver. This provides a set of local coordinates, which we use to interpret integrable systems as spin variants of the trigonometric Ruijsenaars-Schneider system. This generalises to new spin cases recent works on classical integrable systems in the Ruijsenaars-Schneider family.

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Maxime Fairon. 2019-02-20. Spin versions of the complex trigonometric Ruijsenaars-Schneider model from cyclic quivers. https://doi.org/10.1093/integr%2Fxyz008

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