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Separation of Variables and Superintegrability on Riemannian Coverings
Symmetry, integrability and geometry: methods and applications, Tome 19 (2023) Cet article a éte moissonné depuis la source Math-Net.Ru

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We introduce Stäckel separable coordinates on the covering manifolds $M_k$, where $k$ is a rational parameter, of certain constant-curvature Riemannian manifolds with the structure of warped manifold. These covering manifolds appear implicitly in literature as connected with superintegrable systems with polynomial in the momenta first integrals of arbitrarily high degree, such as the Tremblay–Turbiner–Winternitz system. We study here for the first time multiseparability and superintegrability of natural Hamiltonian systems on these manifolds and see how these properties depend on the parameter $k$.
Keywords: Riemannian coverings, integrable systems, separable coordinates. 
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     author = {Claudia Maria Chanu and Giovanni Rastelli},
     title = {Separation of {Variables} and {Superintegrability} on {Riemannian} {Coverings}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2023},
     volume = {19},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2023_19_a61/}
}
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Claudia Maria Chanu; Giovanni Rastelli. Separation of Variables and Superintegrability on Riemannian Coverings. Symmetry, integrability and geometry: methods and applications, Tome 19 (2023). http://geodesic.mathdoc.fr/item/SIGMA_2023_19_a61/

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