%0 Journal Article %A Yu. R. Hakopian %A H. A. Hovhannisyan %T Algebraic multilevel preconditioner for second order finite element approximation in rectangular domains. II. Multigrid preconditioner %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2003 %P 18-24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2003_2_a2/ %G ru %F UZERU_2003_2_a2