TY - JOUR AU - M. T. Karaev TI - Banach Algebra Technique for Proving an Addition Formula for Spectral Multiplicities of Sets of Operators JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 2007 SP - 93 EP - 95 VL - 41 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_2007_41_1_a6/ LA - ru ID - FAA_2007_41_1_a6 ER -