NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2008, Vol.11, No.4, pp.493-497


Trivial Centers of a Cubic System of Liénard Type.
L. Cherkas and V. G. Romanovski

For a cubic system of differential equations we obtain coefficient conditions for a center at the origin. The study is performed using a method of Cherkas [1] and algorithms of computational algebra.
Key words: center-focus problem, Liénard systems

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