TY - JOUR AU - Zhao, Yulin AU - Yang, Lianjiao AU - Chen, Pingge PY - 2013 DA - 2013/11/27 TI - Positive solutions to boundary value problems of a high-order fractional differential equation in a Banach space JO - Advances in Difference Equations SP - 344 VL - 2013 IS - 1 AB - In this paper, by using the fixed-point theorem in the cone of strict-set-contraction operators, we study a class of higher-order boundary value problems of nonlinear fractional differential equation in a Banach space. The sufficient conditions for the existence of at least two positive solutions is obtained. In addition, an example to illustrate the main results is given. SN - 1687-1847 UR - https://doi.org/10.1186/1687-1847-2013-344 DO - 10.1186/1687-1847-2013-344 ID - Zhao2013 ER -