Abstract : We present several methods using higher variational equations to study the integrability of Hamiltonian systems from the algebraic and computational point of view. Through the Morales Ramis Simo theorem, strong integrability conditions can be computed for Hamiltonian systems, allowing us to prove nonintegrability even for potentials with parameters. This theorem can, in particular, be applied to potentials, even transcendental ones, by properly defining them on complex Riemann surfaces. In the even more particular case of homogeneous potentials, a complete computation of integrability conditions of variational equation near straight line orbits is possible at arbitrary order, allowing us to prove the nonintegrability of certain n-body problems which were inaccessible due to the complicated central configuration equation.
https://hal-univ-bourgogne.archives-ouvertes.fr/hal-01514112 Contributeur : UB_DRIVE université de BourgogneConnectez-vous pour contacter le contributeur Soumis le : jeudi 4 mars 2021 - 16:49:39 Dernière modification le : mercredi 3 novembre 2021 - 07:00:57 Archivage à long terme le : : samedi 5 juin 2021 - 19:14:36
Thierry Combot. Higher variational equation techniques for the integrability of homogeneous potentials. Maitine Bergounioux; Gabriel Peyré; Christoph Schnörr; Jean-Baptiste Caillau; Thomas Haberkorn. Variational Methods In Imaging and Geometric Control, 18, De Gruyter, pp.365-386, 2017, Radon Series on Computational and Applied Mathematics, 9783110430394. ⟨10.1515/9783110430394-012⟩. ⟨hal-01514112⟩