%0 Journal Article %A M. A. Lyalinov %T Green’s function for the Helmholtz equation in a~polygonal domain of special form with ideal boundary conditions %J Zapiski Nauchnykh Seminarov POMI %D 2018 %P 150-167 %V 471 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2018_471_a10/ %G ru %F ZNSL_2018_471_a10