Existence of three positive solutions for second-order four - point boundary value problems in cone banach space

Abstract

This thesis is concerned with second-order four-point boundary value problems. It also focused on constructing Green`s function for the corresponding homogenous equation by using Green`s function properties. We established the existence of at least three positive solution by using Legetti-William`s fixed point theorem. This study was mostly dependent on secondary source of data such as published articles related to our study area