| In this paper, we investigate the existence of positive solutions for theform of nonlinear fractional differential equation boundary value problems:where 4 <α≤5 is a real number, D0α+ is the standard Riemann -Liouville fractional differentiation, f : [0,1]×[0,∞)→[0,∞) is continu-ous.On this basis, we further research the following nonlinear fractional dif-ferential existence of positive solutions for boundary value problems:... |