%0 Journal Article %A A. V. Chernov %T Preservation of the global solvability of a first-kind operator equation with controlled additional nonlinearity %J Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory %D 2021 %P 131-141 %V 192 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTO_2021_192_a14/ %G ru %F INTO_2021_192_a14