%0 Journal Article %A V. I. Lotov %T Properties of factorization operators in boundary crossing problems for random walks %J Izvestiya. Mathematics %D 2019 %P 1050-1065 %V 83 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2019_83_5_a5/ %G en %F IM2_2019_83_5_a5