Bi-Hamiltonian structure of spin Sutherland models: the holomorphic case

Autor: László Fehér
Rok vydání: 2021
Předmět:
DOI: 10.48550/arxiv.2101.11484
Popis: We construct a bi-Hamiltonian structure for the holomorphic spin Sutherland hierarchy based on collective spin variables. The construction relies on Poisson reduction of a bi-Hamiltonian structure on the holomorphic cotangent bundle of GL(n,C), which itself arises from the canonical symplectic structure and the Poisson structure of the Heisenberg double of the standard GL(n,C) Poisson--Lie group. The previously obtained bi-Hamiltonian structures of the hyperbolic and trigonometric real forms are recovered on real slices of the holomorphic spin Sutherland model.
Comment: Expanded to 20 pages, contains a simplified formula of the second reduced Poisson bracket, more detailed derivations, and added references
Databáze: OpenAIRE