On the moving plane method for nonlocal problems in bounded domains
  We consider a nonlocal problem involving the fractional laplacian and the Hardy potential, in bounded smooth domains. Exploiting the moving plane method and some weak and strong comparison principles, we deduce symmetry and monotonicity properties of positive solutions under zero Dirichlet boundary conditions. 
Bego\~na Barrios, Luigi Montoro, Berardino Sciunzi
math.AP