Nonlinear Phenomena in Complex Systems, 2005, Vol.8, No.1, pp.89-93

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2005, Vol.8, No.1, pp.89-93

Trivial Centers of a Cubic System of Liénard Type.
Leonid Cherkas and Valery 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 and algorithms of computational algebra.
Key words: center-focus problem, Liénard systems

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