Abstract
We aim to investigate the following nonlinear boundary value problems of fractional differential equations:
(P lambda){-D-t(1)alpha (vertical bar D-0(t)alpha(u(t))vertical bar(p-2)(0)D(t)(alpha)u(t))
= f (t,u(t)) +lambda g(t)vertical bar u(t)vertical bar(q-2)u(t) (t is an element of(0, 1)),
u(0) = u(1) = 0,
where. is a positive parameter, 2 < r < p < q, 1/2 < alpha < 1, g is an element of C([0, 1]), and f is an element of C([0, 1] xR, R). Under appropriate assumptions on the function f, we employ the method of Nehari manifold combined with the fibering maps in order to show the existence of solutions to the boundary value problem for the nonlinear fractional differential equations with Riemann- Liouville fractional derivative. We also present an example as an application.