Artículos de revistas
The local period function for Hamiltonian systems with applications
Fecha
2021-04-15Registro en:
Journal Of Differential Equations. San Diego: Academic Press Inc Elsevier Science, v. 280, p. 590-617, 2021.
0022-0396
10.1016/j.jde.2021.01.033
WOS:000620331000019
6682867760717445
0000-0003-2037-8417
Autor
Universidade Estadual Paulista (Unesp)
Univ Autonoma Barcelona
Ctr Recerca Matemat
Institución
Resumen
In the first part of the paper we develop a constructive procedure to obtain the Taylor expansion, in terms of the energy, of the period function for a non-degenerated center of any planar analytic Hamiltonian system. We apply it to several examples, including the whirling pendulum and a cubic Hamiltonian system. The knowledge of this Taylor expansion of the period function for this system is one of the key points to study the number of zeroes of an Abelian integral that controls the number of limit cycles bifurcating from the periodic orbits of a planar Hamiltonian system that is inspired by a physical model on capillarity. Several other classical tools, like for instance Chebyshev systems are applied to study this number of zeroes. The approach introduced can also be applied in other situations. (C) 2021 Elsevier Inc. All rights reserved.