Differential Equations & Applications · Volume 3, Issue 2 On the existence of periodic solutions for a p-Laplacian neutral functional differential equation with time-varying operator 03-11 Pages 189-207 DOI 10.7153/dea-03-11 Downloads Short PDF Full PDF PNG Authors Zhengxin Wang JinDe Cao Shiping Lu Keywords time-varying operator periodic solutions neutral functional differential equation Mawhin's continuation theorem sign-variable Subject classes 34K13 47B39