G. Villari

activity

20032007

most citedA note on existence and uniqueness of limit cycles for Liénard systems

9 citations · 9 across the 3 of their papers we have counts for

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math.CA2004

Qualitative analysis of phase--portrait for a class of planar vector fields via the comparison method

Timoteo Carletti, Lilia Rosati, Gabriele Villari

The phase--portrait of the second order differential equation: $x ¨ + l = 0 \sum n f_{l} (x) x ˙^{l} = 0,$ is studied. Some results concerning existence, non--existence and uniquen…

math.CA2003★ 9 cited

A note on existence and uniqueness of limit cycles for Liénard systems

Timoteo Carletti, Gabriele Villari

We consider the Liénard equation and we give a sufficient condition to ensure existence and uniqueness of limit cycles. We compare our result with some other existing ones and we g…