TY - JOUR AU - A. B. Grigorian TI - Algebraic multigrid preconditioner for elliptic problems with mixed type boundary conditions II. Multigrid preconditioner JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 2006 SP - 41 EP - 48 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_2006_2_a3/ LA - ru ID - UZERU_2006_2_a3 ER -