Periodic solutions of systems with singularities of repulsive type
Motivated by the classical Coulomb central motion model, we study the existence of Tperiodic solutions for the nonlinear second order system of singular ordinary differential equations u'' + g(u) = p(t). Using topological degree methods, we prove that when the nonlinearity g : RN\\{0} ← RN...
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15361365_v11_n1_p201_Amster http://hdl.handle.net/20.500.12110/paper_15361365_v11_n1_p201_Amster |
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paper:paper_15361365_v11_n1_p201_Amster2023-06-08T16:20:09Z Periodic solutions of systems with singularities of repulsive type Amster, Pablo Gustavo Maurette, Manuel Periodic solutions Repulsive singularities Topological degree Motivated by the classical Coulomb central motion model, we study the existence of Tperiodic solutions for the nonlinear second order system of singular ordinary differential equations u'' + g(u) = p(t). Using topological degree methods, we prove that when the nonlinearity g : RN\\{0} ← RN is continuous, repulsive at the origin and bounded at infinity, if an appropriate Nirenberg type condition holds then either the problem has a classical solution, or else there exists a family of solutions of perturbed problems that converge uniformly and weakly in H1 to some limit function u. Furthermore, under appropriate conditions we prove that u is a classical solution. Fil:Amster, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Maurette, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15361365_v11_n1_p201_Amster http://hdl.handle.net/20.500.12110/paper_15361365_v11_n1_p201_Amster |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Periodic solutions Repulsive singularities Topological degree |
spellingShingle |
Periodic solutions Repulsive singularities Topological degree Amster, Pablo Gustavo Maurette, Manuel Periodic solutions of systems with singularities of repulsive type |
topic_facet |
Periodic solutions Repulsive singularities Topological degree |
description |
Motivated by the classical Coulomb central motion model, we study the existence of Tperiodic solutions for the nonlinear second order system of singular ordinary differential equations u'' + g(u) = p(t). Using topological degree methods, we prove that when the nonlinearity g : RN\\{0} ← RN is continuous, repulsive at the origin and bounded at infinity, if an appropriate Nirenberg type condition holds then either the problem has a classical solution, or else there exists a family of solutions of perturbed problems that converge uniformly and weakly in H1 to some limit function u. Furthermore, under appropriate conditions we prove that u is a classical solution. |
author |
Amster, Pablo Gustavo Maurette, Manuel |
author_facet |
Amster, Pablo Gustavo Maurette, Manuel |
author_sort |
Amster, Pablo Gustavo |
title |
Periodic solutions of systems with singularities of repulsive type |
title_short |
Periodic solutions of systems with singularities of repulsive type |
title_full |
Periodic solutions of systems with singularities of repulsive type |
title_fullStr |
Periodic solutions of systems with singularities of repulsive type |
title_full_unstemmed |
Periodic solutions of systems with singularities of repulsive type |
title_sort |
periodic solutions of systems with singularities of repulsive type |
publishDate |
2011 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15361365_v11_n1_p201_Amster http://hdl.handle.net/20.500.12110/paper_15361365_v11_n1_p201_Amster |
work_keys_str_mv |
AT amsterpablogustavo periodicsolutionsofsystemswithsingularitiesofrepulsivetype AT maurettemanuel periodicsolutionsofsystemswithsingularitiesofrepulsivetype |
_version_ |
1768543342016069632 |