Limit cycles of planar piecewise linear Hamiltonian differential systems with two or three zones

Autor(es)

Pessoa, Claudio ; Ribeiro, Ronisio

• Tipo de documento: Artigo Científico
• Fonte: Electronic Journal of Qualitative Theory of Differential Equations; v. N/A, n. 27, p. 19-pg., 2022-01-01.

Resumo

In this paper, we study the existence of limit cycles in continuous and discontinuous planar piecewise linear Hamiltonian differential system with two or three zones separated by straight lines and such that the linear systems that define the piecewise one have isolated singular points, i.e. centers or saddles. In this case, we show that if the planar piecewise linear Hamiltonian differential system is either continuous or discontinuous with two zones, then it has no limit cycles. Now, if the planar piecewise linear Hamiltonian differential system is discontinuous with three zones, then it has at most one limit cycle, and there are examples with one limit cycle. More precisely, without taking into account the position of the singular points in the zones, we present examples with the unique limit cycle for all possible combinations of saddles and centers. (AU)

• Processo FAPESP: 18/19726-5 - Problema de Dulac e do Centro-Foco em Variedades Bidimensionais
• Beneficiário: Cláudio Gomes Pessoa
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Processo FAPESP: 19/10269-3 - Teorias ergódica e qualitativa dos sistemas dinâmicos II
• Beneficiário: Claudio Aguinaldo Buzzi
• Modalidade de apoio: Auxílio à Pesquisa - Temático