... assumption that Ft, a, 0, ,0/≡ 0. The proofis complete.Theorem 3.2. If H1 and H3 hold, then 1.3 has at least one nonconstant T-periodic solution ifone of the following conditions ... solutions for neutral functional differential equation,”Nonlinear Analysis: Theory, Methods & Applications, vol. 54, no. 7, pp. 1285–1306, 2003.2 S. Lu, “Existence of periodic solutions for ... periodic solutions wereestablished for these equations. Afterwards, along with intensive research on the p-Laplacian,6 Boundary Value ProblemsNow we consider 2.22. Define the conjugate index...