TY - JOUR AU - A. I. Sedov TI - On calculation of eigenvalues and eigenfunctions of a discrete operator with a nuclear resolvent perturbed by a bounded operator JO - Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika PY - 2019 SP - 16 EP - 23 VL - 11 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VYURM_2019_11_1_a2/ LA - ru ID - VYURM_2019_11_1_a2 ER -