%0 Journal Article %A A. A. Kuzmina %T An optimal system of finite-dimensional subalgebras of the Lie algebra allowed by the heat equation %J Sibirskij žurnal industrialʹnoj matematiki %D 2004 %P 88-98 %V 7 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJIM_2004_7_2_a7/ %G ru %F SJIM_2004_7_2_a7