Electronic Journal of Differential Equations, Vol. 2014 (2014), No. 50, pp. 1-7. Title: Positive solutions to a nonlinear fractional Dirichlet problem on the half-line Authors: Habib Maagli (King Abdulaziz Univ., Rabigh, Saudi Arabia) Abdelwaheb Dhifli (Faculte des Sciences de Tunis, Tunisia) Abstract: This concerns the existence of infinitely many positive solutions to the fractional differential equation $$\displaylines{ D^{\alpha }u(x)+f(x,u,D^{\alpha -1}u)=0, \quad x>0,\cr \lim_{x\to 0^{+}}u(x)=0, }$$ where $\alpha \in (1,2]$ and f is a Borel measurable function in $\mathbb{R}^{+}\times \mathbb{R}^{+}\times \mathbb{R}^{+}$ satisfying some appropriate conditions. Submitted November 28, 2013. Published February 19, 2014. Math Subject Classifications: 34A08. Key Words: Fractional differential equation; Dirichlet problem; positive solution; Schauder fixed point theorem.