Three solutions for elliptic Dirichlet boundary value problem with   singular weight
  In this paper we prove the~existence of two non-trivial weak solutions of Dirichlet boundary value problem for p-Laplacian problem with a~singular part and two disturbances satisfying the~proper assumptions. The~abstract existence result we use is the~famous Ricceri theorem. 
Piotr Kowalski and Joanna Piwnik
math.AP math.FA