%0 Journal Article %A Roman V. Ulvert %T Connecting homomorphism and separating cycles %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2021 %P 647-658 %V 14 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2021_14_5_a12/ %G en %F JSFU_2021_14_5_a12