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On the number of critical periods for planar polynomial systems
(Pergamon-Elsevier B.V. Ltd, 2008-10-01)
In this paper we get some lower bounds for the number of critical periods of families of centers which are perturbations of the linear one. We give a method which lets us prove that there are planar polynomial centers of ...
On the number of critical periods for planar polynomial systems
(Pergamon-Elsevier B.V. Ltd, 2008-10-01)
In this paper we get some lower bounds for the number of critical periods of families of centers which are perturbations of the linear one. We give a method which lets us prove that there are planar polynomial centers of ...
On the number of critical periods for planar polynomial systems
(Pergamon-Elsevier B.V. Ltd, 2014)
An Estimation For The Number Of Limit Cycles In A Liénard-like Perturbation Of A Quadratic Nonlinear Center
(Kluwer Academic Publishers, 2014)
An estimation for the number of limit cycles in a Liénard-like perturbation of a quadratic nonlinear center
(SpringerDordrecht, 2015-01)
The number of limit cycles which bifurcates from periodic orbits of a differential system with a center has been extensively studied recently using many distinct tools. This problem was proposed by Hilbert in 1900, and it ...
PI-controlled bioreactor as a generalized Liénard system
(Elsevier, 2007)
Limit Cycles In Discontinuous Classical Liénard Equations
(Elsevier Ltd, 2014)