%0 Journal Article %A V. V. Filatov %T Massive sets produced by semilinear elliptic operators on non-compact Riemann manifolds %J Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika %D 2023 %P 26-31 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VYURM_2023_15_2_a3/ %G ru %F VYURM_2023_15_2_a3