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In this paper, we investigate the existence and nonexistence of positive solutions for nonlinear fractional differential equation boundary value problem. By means of fixed-point theorems on a cone and the properties of Green function, some sufficient criteria are established. Our results can be considered as an extension of some previous results. c ©2017 all rights reserved.

Existence and nonexistence of positive solutions for Dirichlet-type boundary value problem of nonlinear fractional differential equation