%0 Journal Article %A I. A. Ibragimov %A N. V. Smorodina %A M. M. Faddeev %T A probabilistic approximation of the evolution operator $\exp(t(S\nabla,\nabla))$ with a~complex matrix~$S$ %J Zapiski Nauchnykh Seminarov POMI %D 2017 %P 134-144 %V 466 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2017_466_a9/ %G ru %F ZNSL_2017_466_a9