TY - BOOK AU - KisyƄski,Jan TI - On Resolvents and Semigroup Associated with the Dirichlet Problem for an Elliptic Differential Operator of Second Order with a Levy Perturbation SN - 8387270229 PY - 1998/// CY - Lublin PB - Wydaw. Politechniki Lubelskiej N1 - bibliogr ER -