%0 Journal Article %A Nhat, Nguyen Huu Tri %A Hoi, Tran Ngoc %T Normalizers of classical groups arising under extension of the base ring %J Rendiconti del Seminario Matematico della Università di Padova %D 2021 %P 153-165 %V 145 %U http://archive.numdam.org/articles/10.4171/rsmup/75/ %R 10.4171/rsmup/75 %G en %F RSMUP_2021__145__153_0