Bifurcation and multiplicity results for critical fractional p-Laplacian   problems
  In this paper we investivate bifurcation results for a class of problem in a smooth bounded domain involving the fractional p-Laplacian operator and with a nonlinearity that reaches the critical growth with respect to the fractional Sobolev embedding. 
Kanishka Perera, Marco Squassina, Yang Yang
math.AP