Real-analyticity of 2-dimensional superintegrable metrics and solution of two Bolsinov-Kozlov-Fomenko conjectures

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Main Author: Matveev, Vladimir S.
Format: Preprint
Published: 2025
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author Matveev, Vladimir S.
author_facet Matveev, Vladimir S.
contents We study two-dimensional Riemannian metrics which are superintegrable in the class of polynomial in momenta integrals. The study is based on our main technical result, Theorem 3, which states that the Poisson bracket of two polynomial in momenta integrals is an algebraic function of the integrals and of the Hamiltonian. We conjecture that two-dimensional superintegrable Riemannian metrics are necessary real-analytic in isothermal coordinate systems, and give arguments supporting this conjecture. Small modification of the arguments, discussed in the paper, provides a methods to construct new superintegrable systems. We prove a special case of the above conjecture which is sufficient to show that the metrics constructed by K. Kiyohara in 2001, which admit irreducible polynomial in momenta integrals of arbitrary high degree $k$, are not superintegrable and in particular do not admit nontrivial polynomial in momenta integral of degree less than $k$. This result solves Conjectures (b) and (c) explicitly formulated in Bolsinov, KOzlov and Fomenko in 1995.
format Preprint
id arxiv_https___arxiv_org_abs_2501_18485
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Real-analyticity of 2-dimensional superintegrable metrics and solution of two Bolsinov-Kozlov-Fomenko conjectures
Matveev, Vladimir S.
Exactly Solvable and Integrable Systems
Mathematical Physics
Differential Geometry
Dynamical Systems
37J35, 70H06
We study two-dimensional Riemannian metrics which are superintegrable in the class of polynomial in momenta integrals. The study is based on our main technical result, Theorem 3, which states that the Poisson bracket of two polynomial in momenta integrals is an algebraic function of the integrals and of the Hamiltonian. We conjecture that two-dimensional superintegrable Riemannian metrics are necessary real-analytic in isothermal coordinate systems, and give arguments supporting this conjecture. Small modification of the arguments, discussed in the paper, provides a methods to construct new superintegrable systems. We prove a special case of the above conjecture which is sufficient to show that the metrics constructed by K. Kiyohara in 2001, which admit irreducible polynomial in momenta integrals of arbitrary high degree $k$, are not superintegrable and in particular do not admit nontrivial polynomial in momenta integral of degree less than $k$. This result solves Conjectures (b) and (c) explicitly formulated in Bolsinov, KOzlov and Fomenko in 1995.
title Real-analyticity of 2-dimensional superintegrable metrics and solution of two Bolsinov-Kozlov-Fomenko conjectures
topic Exactly Solvable and Integrable Systems
Mathematical Physics
Differential Geometry
Dynamical Systems
37J35, 70H06
url https://arxiv.org/abs/2501.18485