%0 Journal Article %A D. E. Shafranov %A N. V. Adukova %T Solvability of the Showalter--Sidorov problem for Sobolev type equations with operators in the form of first-order polynomials from the Laplace--Beltrami operator on differential forms %J Journal of computational and engineering mathematics %D 2017 %P 27-34 %V 4 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCEM_2017_4_3_a3/ %G en %F JCEM_2017_4_3_a3