TY - JOUR AU - L. N. Nikol'skaya TI - Geometrical properties of classes of characteristic vectors and point spectra of linear operators JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1970 SP - 105 EP - 106 VL - 4 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1970_4_3_a14/ LA - ru ID - FAA_1970_4_3_a14 ER -