%0 Journal Article %A M. M. Malamud %A V. V. Marchenko %T Invariant Schr\"odinger Operators with Point Interactions at the Vertices of a Regular Polyhedron %J Matematičeskie zametki %D 2021 %P 471-477 %V 110 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2021_110_3_a12/ %G ru %F MZM_2021_110_3_a12