%0 Journal Article %A D. A. Juraev %T On the Cauchy problem for matrix factorizations of the Helmholtz equation in an unbounded domain in ${\mathbb R}^{2}$ %J Sibirskie èlektronnye matematičeskie izvestiâ %D 2018 %P 1865-1877 %V 15 %I mathdoc %U http://geodesic.mathdoc.fr/item/SEMR_2018_15_a147/ %G ru %F SEMR_2018_15_a147