Journal of Inequalities and Applications 
Volume 2006 (2006), Article ID 98685, 17 pages
doi:10.1155/JIA/2006/98685

Periodic solutions of second-order Liénard equations with p-Laplacian-like operators

Youyu Wang and Weigao Ge

The School of Mathematics, Beijing Institute of Technology, Beijing 100081, China

Received 12 April 2005; Accepted 10 August 2005

Abstract

The existence of periodic solutions for second-order Liénard equations with p-Laplacian-like operator is studied by applying new generalization of polar coordinates.