Darzi, R.; Mohammadzadeh, B.; Neamaty, A.; Baleanu, Dumitru
(Hindawi LTD, 2013)
We apply the lower and upper solutions method and fixed-point theorems to prove the existence of positive solution to fractional boundary value problem D(0+)(alpha)u(t) + f(t, u(t)) = 0, 0 < t < 1, 2 < alpha <= 3, u(0) = ...