%0 Journal Article %A S. V. Sidorov %A G. V. Utkin %T On the similarity of upper triangular nilpotent matrices of the $4$th and the $5$th orders to a generalized Jordan block over the ring of integers %J Žurnal Srednevolžskogo matematičeskogo obŝestva %D 2025 %P 69-80 %V 27 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SVMO_2025_27_1_a4/ %G ru %F SVMO_2025_27_1_a4