%0 Journal Article %A E. I. Biryukova %T An analog of the Jordan--Dirichlet theorem for an operator with involution on a graph %J Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory %D 2021 %P 17-24 %V 193 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTO_2021_193_a2/ %G ru %F INTO_2021_193_a2