Nonlinear Dynamics

, Volume 91, Issue 1, pp 487–496 | Cite as

Nondegenerate centers and limit cycles of cubic Kolmogorov systems

Original Paper
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Abstract

We characterize the center conditions for a cubic Kolmogorov differential system. We also study the number of small limit cycles that can bifurcate from the singular point of focus type for such systems.

Keywords

Center problem Kolmogorov systems Analytic integrability Limit cycles 

Mathematics Subject Classification

37C15 34A34 34C05 

Notes

Acknowledgements

The first and second authors are partially supported by a MINECO/ FEDER Grant No. MTM2014-56272-C2-2 and by the Consejería de Educación y Ciencia de la Junta de Andalucía (Projects P12-FQM-1658, FQM-276). The third author is partially supported by a MINECO/FEDER Grant No. MTM2014-53703-P and an AGAUR (Generalitat de Catalunya) Grant No. 2014SGR 1204. The authors thank Alejandro Rodríguez Luis for his help in finding numerically five limit cycles.

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© Springer Science+Business Media B.V. 2017

Authors and Affiliations

  1. 1.Departamento de Matemáticas, Facultad de CienciasUniversidad de HuelvaHuelvaSpain
  2. 2.Departament de Matemàtica, Inspires Research CentreUniversitat de LleidaLleidaSpain

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