文摘
In this paper, we study boundary value problems for the following nonlinear fractional differential equations involving the Caputo fractional derivative $$\begin{aligned}&D^{\alpha }_{0+}u(t)-Mu(t)-\lambda g(t)f(u)=0,\quad t\in [0,1],\nonumber \\&u(0)=\eta u(1),\;\;u'(0)=\gamma u'(1), \end{aligned}$$