Dulac Functions of Planar Vector Fields

  1. Jaume Giné 1
  1. 1 Universitat de Lleida
    info

    Universitat de Lleida

    Lleida, España

    ROR https://ror.org/050c3cw24

Revista:
Qualitative theory of dynamical systems

ISSN: 1575-5460

Año de publicación: 2014

Volumen: 13

Número: 1

Páginas: 121-128

Tipo: Artículo

DOI: 10.1007/S12346-014-0108-X DIALNET GOOGLE SCHOLAR

Otras publicaciones en: Qualitative theory of dynamical systems

Objetivos de desarrollo sostenible

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.