Periodic Solutions of Singular Lagrangian Systems:
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Bibliographische Detailangaben
Beteilige Person: Ambrosetti, Antonio 1944-2020 (VerfasserIn)
Format: Elektronisch E-Book
Sprache:Englisch
Veröffentlicht: Boston, MA Birkhäuser Boston 1993
Schriftenreihe:Progress in Nonlinear Differential Equations and Their Applications 10
Schlagwörter:
Links:https://doi.org/10.1007/978-1-4612-0319-3
Beschreibung:This monograph deals with the existence of periodic motions of Lagrangian systems with n degrees of freedom ij + V'(q) =0, where V is a singular potential. A prototype of such a problem, even if it is not the only physically interesting one, is the Kepler problem .. q 0 q+yqr= . This, jointly with the more general N-body problem, has always been the object of a great deal of research. Most of those results are based on perturbation methods, and make use of the specific features of the Kepler potential. Our approach is more on the lines of Nonlinear Functional Analysis: our main purpose is to give a functional frame for systems with singular potentials, including the Kepler and the N-body problem as particular cases. Precisely we use Critical Point Theory to obtain existence results, qualitative in nature, which hold true for broad classes of potentials. This highlights that the variational methods, which have been employed to obtain important advances in the study of regular Hamiltonian systems, can be successfally used to handle singular potentials as well.
The research on this topic is still in evolution, and therefore the results we will present are not to be intended as the final ones. Indeed a major purpose of our discussion is to present methods and tools which have been used in studying such problems. Vlll PREFACE Part of the material of this volume has been presented in a series of lectures given by the authors at SISSA, Trieste, whom we would like to thank for their hospitality and support. We wish also to thank Ugo Bessi, Paolo Caldiroli, Fabio Giannoni, Louis Jean jean, Lorenzo Pisani, Enrico Serra, Kazunaka Tanaka, Enzo Vitillaro for helpful suggestions. May 26, 1993
Umfang:1 Online-Ressource (XII, 160 p)
ISBN:9781461203193
9781461267058
DOI:10.1007/978-1-4612-0319-3