Nontrivial solutions of systems of nonlocal Caputo fractional BVPs
  We discuss the existence, non-existence and multiplicity of nontrivial solutions for systems of Caputo fractional differential equations subject to nonlocal boundary conditions. Our methodology relies on classical fixed point index and we make use of recent results by Infante and Pietramala. 
Gennaro Infante, Samira Rihani
math.CA