Baleanu, Dumitru; Mohammadi, Hakimeh; Rezapour, Shahram
(Springer Open, 2013-12-11)
By using fixed point results on cones, we study the existence of solutions for the singular nonlinear fractional boundary value problem
(c)D(alpha)u(t) = f(t, u(t), u'(t), (c)D(beta)u(t)),
u(0) = au(1), u'(0) = ...