%0 Journal Article %A B. Kh. Turmetov %A V. V. Karachik %T On solvability of the Dirichlet and Neumann boundary value problems for the Poisson equation with multiple involution %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2021 %P 651-667 %V 31 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2021_31_4_a8/ %G ru %F VUU_2021_31_4_a8