TY - JOUR AU - I. G. Khachatryan TI - On some formulas for the index of linear bounded operator JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 2009 SP - 3 EP - 9 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_2009_3_a0/ LA - en ID - UZERU_2009_3_a0 ER -