TY - JOUR AU - A. M. Bikchentaev TI - Projection-Convex Combinations in $C^*$-Algebras and the Invariant Subspace Problem,~I JO - Matematičeskie zametki PY - 2006 SP - 311 EP - 315 VL - 79 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2006_79_2_a14/ LA - ru ID - MZM_2006_79_2_a14 ER -