Jan Kisyński

On resolvents and semigroup associated with the dirichlet problem for an elliptic differential operator of second order with a Lévy perturbation

δz/δx. δz/δy)

Representations of Lie groups in Hilbert spaces and cosine operator functions

Fluctuations and one-sided limits

processes without probability

Semi-groups of operators

On the locally convex space of rapidly decreasing distributions