Invariant curves and integrability of planar Cr differential systems

We improve the known expressions of the Cr differential systems in the plane having a given Cr+1 invariant curve, or a given Cr+1 first integral. Their application to polynomial differential systems having either an invariant algebraic curve, or a first integral, also improves the known results on s...

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Detalles Bibliográficos
Autores: Ferragut Amengual, Antoni Manel|||0000-0002-7420-5004, Llibre, Jaume|||0000-0002-9511-5999
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:221313
Acceso en línea:https://ddd.uab.cat/record/221313
https://dx.doi.org/urn:doi:10.1216/RMJ-2018-48-5-1537
Access Level:acceso abierto
Palabra clave:Planar differential system
Cr function
Invariant curve
Exponential factor
Cofactor
Darboux theory of integrability
Descripción
Sumario:We improve the known expressions of the Cr differential systems in the plane having a given Cr+1 invariant curve, or a given Cr+1 first integral. Their application to polynomial differential systems having either an invariant algebraic curve, or a first integral, also improves the known results on such systems.