Abstract:
For the sets of semimartingales on $[0,T]$ or on $[0,\infty[$ we give sufficient conditions for the relative compactness of families of their distributions on $D_{[0,T]}(R^d)$ or $D_{[0,\infty[}(R^d)$
(with the $J_1$-topology of Skorohod) in the terms of characteristics of the decomposition (1),