%0 Journal Article %A G. P. Astrakhantsev %A L. A. Rukhovets %T The rate of convergence of the block SOR method of solution of variational-difference schemes for elliptic equations of order $2m$ in arbitrary two-dimensional domain %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1973 %P 1425-1440 %V 13 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1973_13_6_a6/ %G ru %F ZVMMF_1973_13_6_a6