%0 Journal Article %A M. I. Sumin %T The perturbation method and a regularization of the Lagrange multiplier rule in convex problems for constrained extremum %J Trudy Instituta matematiki i mehaniki %D 2024 %P 203-221 %V 30 %N 2 %U http://geodesic.mathdoc.fr/item/TIMM_2024_30_2_a14/ %G ru %F TIMM_2024_30_2_a14