Existence of Positive Solution For a Fourth-order Differential System

Abstract

Existence of Positive Solution For a Fourth-order Differential System 
 where µ > 0 is a constant, and the nonlinear terms f, g may be singular with respect to the time and space variables. By fixed point theorem in cones, the existence is established for singular differential system. The results obtained herein generalize and improve some known results including singular and non-singular cases.