Yuji Liu
Department of Mathematics,
Guangdong University of Business Studies
Guangzhou
510000, P.R. China
Haiping Shi
Basic Courses Department,
Guangdong Baiyun Institute
Guangzhou
510450, P.R. China
Sufficient conditions for the existence of at least one periodic solution of a nonlinear fourth order functional differential equations with p-Laplacian are established. Examples are presented to illustrate the main result.