A Polynomial System of Degree Four with an Invariant Square Containing At Least Five Limit Cycles

We consider a class of polynomial systems of degree four with four real invariant straight lines that form a square, called this an invariant square, and also that contains in its interior at least five small amplitude limit cycles for a certain choice of the parameters. Moreover, we will obtain the...

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Detalles Bibliográficos
Autores: Grau Montaña, Maite, Szántó, Iván
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/466318
Acceso en línea:https://doi.org/10.1007/s12346-024-01106-9
https://hdl.handle.net/10459.1/466318
Access Level:acceso abierto
Palabra clave:Polynomial differential system
Small amplitude limit cycles
Invariant straight lines
Descripción
Sumario:We consider a class of polynomial systems of degree four with four real invariant straight lines that form a square, called this an invariant square, and also that contains in its interior at least five small amplitude limit cycles for a certain choice of the parameters. Moreover, we will obtain the necessary and sufficient conditions for the critical point inside the square to be a center.