Composition conditions in the trigonometric Abel equation

In this paper we deal with the center problem for the trigonometricAbel equation dρ/dρ =a1(θ)ρ^2+a2(θ)ρ^3; where a1(θ) and a2(θ)are trigonometric polynomials in θ. This problem is closely connectedwith the classical Poincar´e center problem for planar polynomial vectorfields.

Detalles Bibliográficos
Autores: Giné, Jaume, Grau Montaña, Maite, Santallusia Esvert, Xavier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/49446
Acceso en línea:https://doi.org/10.11948/2013011
http://hdl.handle.net/10459.1/49446
Access Level:acceso abierto
Palabra clave:Center problem
Abel differential equation
Universal centers
Polynomial differential equations
Equacions abelianes
Descripción
Sumario:In this paper we deal with the center problem for the trigonometricAbel equation dρ/dρ =a1(θ)ρ^2+a2(θ)ρ^3; where a1(θ) and a2(θ)are trigonometric polynomials in θ. This problem is closely connectedwith the classical Poincar´e center problem for planar polynomial vectorfields.