@article { author = {Darzi, Rahmat and Agheli, Bahram}, title = {Existence and uniqueness of positive and nondecreasing solution for nonlocal fractional boundary value problem}, journal = {Computational Methods for Differential Equations}, volume = {3}, number = {2}, pages = {123-133}, year = {2015}, publisher = {University of Tabriz}, issn = {2345-3982}, eissn = {2383-2533}, doi = {}, abstract = {In this article, we verify existence and uniqueness of positive and nondecreasing solution for nonlinear boundary value problem of fractional differential equation in the form $D_{0^{+}}^{alpha}x(t)+f(t,x(t))=0, 0