TY - JOUR AU - Yu. Kh. Eshkabilov TI - On infinity of the discrete spectrum of operators in the Friedrichs model JO - Matematičeskie trudy PY - 2011 SP - 195 EP - 211 VL - 14 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MT_2011_14_1_a7/ LA - ru ID - MT_2011_14_1_a7 ER -