For certain finite groups G of Bäcklund transformations, we show that a dynamics of G-invariant configurations of n| G| Calogero–Painlevé particles is equivalent to a certain n-particle Calogero–Painlevé system. We also show that the reduction of a dynamics on G-invariant subset of n| G| × n| G| matrix Painlevé system is equivalent to a certain n× n matrix Painlevé system. The groups G correspond to folding transformations of Painlevé equations. The proofs are based on Hamiltonian reductions.

Hamiltonian reductions in matrix Painlevé systems / Bershtein, M.; Grigorev, A.; Shchechkin, A.. - In: LETTERS IN MATHEMATICAL PHYSICS. - ISSN 0377-9017. - 113:2(2023). [10.1007/s11005-023-01651-5]

Hamiltonian reductions in matrix Painlevé systems

Bershtein M.;Shchechkin A.
2023-01-01

Abstract

For certain finite groups G of Bäcklund transformations, we show that a dynamics of G-invariant configurations of n| G| Calogero–Painlevé particles is equivalent to a certain n-particle Calogero–Painlevé system. We also show that the reduction of a dynamics on G-invariant subset of n| G| × n| G| matrix Painlevé system is equivalent to a certain n× n matrix Painlevé system. The groups G correspond to folding transformations of Painlevé equations. The proofs are based on Hamiltonian reductions.
2023
113
2
47
10.1007/s11005-023-01651-5
https://arxiv.org/abs/2208.04824
Bershtein, M.; Grigorev, A.; Shchechkin, A.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/147030
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