Existence of solutions for a system of second order nonlinear periodic boundary value problems

Abstract

Existence of coupled periodic quasi-solutions for system of second order differential equations are discussed by combining the method of upper and lower solutions and Lyapunov Schmidt method. The results corresponding to homogeneous Neumann boundary conditions are also given.

^†On leave from Osmania University, Hyderabad - 500-007, India

^†On leave from Osmania University, Hyderabad - 500-007, India

Notes

^†On leave from Osmania University, Hyderabad - 500-007, India