Publicação: On the number of critical periods for planar polynomial systems
dc.contributor.author | Cima, Anna | |
dc.contributor.author | Gasull, Armengol | |
dc.contributor.author | da Silva, Paulo R. [UNESP] | |
dc.contributor.institution | Univ Autonoma Barcelona | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T15:33:44Z | |
dc.date.available | 2014-05-20T15:33:44Z | |
dc.date.issued | 2008-10-01 | |
dc.description.abstract | In this paper we get some lower bounds for the number of critical periods of families of centers which are perturbations of the linear one. We give a method which lets us prove that there are planar polynomial centers of degree l with at least 2[(l - 2)/2] critical periods as well as study concrete families of potential, reversible and Lienard centers. This last case is studied in more detail and we prove that the number of critical periods obtained with our approach does not. increases with the order of the perturbation. (C) 2007 Elsevier Ltd. All rights reserved. | en |
dc.description.affiliation | Univ Autonoma Barcelona, Dept Matemat, E-08193 Barcelona, Spain | |
dc.description.affiliation | IBILCE UNESP, BR-15054000 São Paulo, Brazil | |
dc.description.affiliationUnesp | IBILCE UNESP, BR-15054000 São Paulo, Brazil | |
dc.format.extent | 1889-1903 | |
dc.identifier | http://dx.doi.org/10.1016/j.na.2007.07.031 | |
dc.identifier.citation | Nonlinear Analysis-theory Methods & Applications. Oxford: Pergamon-Elsevier B.V. Ltd, v. 69, n. 7, p. 1889-1903, 2008. | |
dc.identifier.doi | 10.1016/j.na.2007.07.031 | |
dc.identifier.issn | 0362-546X | |
dc.identifier.uri | http://hdl.handle.net/11449/42286 | |
dc.identifier.wos | WOS:000258359300001 | |
dc.language.iso | eng | |
dc.publisher | Pergamon-Elsevier B.V. Ltd | |
dc.relation.ispartof | Nonlinear Analysis-theory Methods & Applications | |
dc.relation.ispartofjcr | 1.291 | |
dc.rights.accessRights | Acesso restrito | pt |
dc.source | Web of Science | |
dc.subject | period function | en |
dc.subject | critical periods | en |
dc.subject | perturbations | en |
dc.subject | potential systems | en |
dc.subject | reversible centers | en |
dc.subject | Hamiltonian centers | en |
dc.subject | Lienard centers | en |
dc.title | On the number of critical periods for planar polynomial systems | en |
dc.type | Artigo | pt |
dcterms.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dcterms.rightsHolder | Pergamon-Elsevier B.V. Ltd | |
dspace.entity.type | Publication | |
unesp.campus | Universidade Estadual Paulista (UNESP), Instituto de Biociências, Letras e Ciências Exatas, São José do Rio Preto | pt |
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