Phase portraits of cubic polynomial Kolmogorov differential systems having a rational first integral of degree three

We classify all global phase portraits in the Poincaré disc of the cubic polynomial Kolmogorov differential systems having a well-defined rational first integral of degree three at the origin. For such differential systems there are exactly two different global phase portraits up to a reversal of th...

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Detalles Bibliográficos
Autores: Llibre, Jaume|||0000-0002-9511-5999, Tian, Renhao|||0009-0006-7143-2910
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:313606
Acceso en línea:https://ddd.uab.cat/record/313606
https://dx.doi.org/urn:doi:10.1063/5.0220041
Access Level:acceso abierto
Palabra clave:Kolmogorov differential system
Rational first integral
Phase portrait
Descripción
Sumario:We classify all global phase portraits in the Poincaré disc of the cubic polynomial Kolmogorov differential systems having a well-defined rational first integral of degree three at the origin. For such differential systems there are exactly two different global phase portraits up to a reversal of the sense of their orbits.