%0 Journal Article %A Tulkin H. Rasulov %A Bekzod I. Bahronov %T Existence of the eigenvalues of a tensor sum of the Friedrichs models with rank 2 perturbation %J Nanosistemy: fizika, himiâ, matematika %D 2023 %P 151-157 %V 14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/NANO_2023_14_2_a0/ %G en %F NANO_2023_14_2_a0