Comparison results for nonlinear anisotropic parabolic problems
  Comparison results for solutions to the Dirichlet problems for a class of nonlinear, anisotropic parabolic equations are established. These results are obtained through a semi-discretization method in time after providing estimates for solutions to anisotropic elliptic problems with zero-order terms. 
Angela Alberico, Giuseppina di Blasio, Filomena Feo
math.AP