摘要：We consider the existence of single and multiple positive solutions for fourth-order Sturm-Liouville boundary value problem in Banach space. The sufficient condition for the existence of single and multiple positive solutions is obtained by fixed theorem of strict set contraction operator in the frame of the ODE technique. Our results significantly extend and improve many known results including singular and nonsingular cases.
关键词：Banach Space ; Continuous Operator ; Real Banach Space ; Nonempty Closed Convex Subset ; Elastic Beam
