TY - JOUR AU - Yu. Kh. Èshkabilov TI - On infinite number of negative eigenvalues of the Friedrichs model JO - Nanosistemy: fizika, himiâ, matematika PY - 2012 SP - 16 EP - 24 VL - 3 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NANO_2012_3_6_a1/ LA - ru ID - NANO_2012_3_6_a1 ER -