TY - JOUR AU - S. I. Yakovlev TI - Singular Spectrum of the Friedrichs Model Operators in a Neighborhood of the Singular Point JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1996 SP - 92 EP - 95 VL - 30 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1996_30_1_a18/ LA - ru ID - FAA_1996_30_1_a18 ER -