%0 Journal Article %A P. A. Zinova %A M. E. Kazarian %T Algebra of shares, complete bipartite graphs and $\mathfrak{sl}_2$ weight system %J Sbornik. Mathematics %D 2023 %P 832-852 %V 214 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2023_214_6_a3/ %G en %F SM_2023_214_6_a3