Existence of positive periodic solutions of fourth-order singular p-Laplacian neutral functional differential equations


Fanchao Kong, Shiping Lu




This work deals with the existence of positive periodic solutions for the fourth-order p-Laplacian neutral functional differential equations with a time-varying delay and a singularity. The results are established using the continuation theorem of coincidence degree theory and some analysis methods. A numerical example is presented to illustrate the effectiveness and feasibility of the proposed criterion.