TY - JOUR AU - S. V. Sidorov AU - G. V. Utkin TI - 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 JO - Žurnal Srednevolžskogo matematičeskogo obŝestva PY - 2025 SP - 69 EP - 80 VL - 27 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SVMO_2025_27_1_a4/ LA - ru ID - SVMO_2025_27_1_a4 ER -