Dirichlet heat kernel for unimodal L\'evy processes
  We estimate the heat kernel of the smooth open set for the isotropic unimodal pure-jump L\'evy process with infinite L\'evy measure and weakly scaling L\'evy-Kchintchine exponent. 
K. Bogdan, T. Grzywny, M. Ryznar
math.PR math.AP