Dulac Functions of Planar Vector Fields
-
1
Universitat de Lleida
info
ISSN: 1575-5460
Año de publicación: 2014
Volumen: 13
Número: 1
Páginas: 121-128
Tipo: Artículo
Otras publicaciones en: Qualitative theory of dynamical systems
Resumen
In this work we give sufficient conditions for the existence of a Dulac function for an arbitrary differential system. This Dulac function allows to discard the existence of limit cycles in its domain of definition if this domain is a simply connected region. If the domain of definition is -multiple connected then the Dulac function can estimate the number of limit cycles inside the domain.
Información de financiación
Acknowledgments The author is partially supported by the MINECO/FEDER Grant number MTM2011– 22877 and by an AGAUR (Generalitat de Catalunya) Grant number 2009SGR–381.Financiadores
-
Generalitat de Catalunya
Spain
- 2009SGR–381
- Agència de Gestió d'Ajuts Universitaris i de Recerca Spain
- Ministerio de Economía y Competitividad Spain
-
European Regional Development Fund
European Union
- MTM2011– 22877