TY - JOUR AU - A. S. Tikhonov TI - An absolutely continuous spectrum and a~scattering theory for operators with spectrum on a~curve JO - Algebra i analiz PY - 1995 SP - 200 EP - 220 VL - 7 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_1995_7_1_a6/ LA - ru ID - AA_1995_7_1_a6 ER -