Positive Solution of Singular Fractional Differential Equation in Banach Space

Abstract

We investigated a singular multipoint boundary value problem for fractional differential equation in Banach space. The nonlinear term $f(t,x,y)$ is positive and singular at $x=\theta$ and (or) $x=\theta$. Employing regularization, sequential techniques, and diagonalization methods, we obtained some new existence results of positive solution.