%0 Journal Article %A J. Ettayb %T On $\lambda$-commuting and left (right) pseudospectrum and left~(right) condition pseudospectrum of continuous linear operators on~ultrametric Banach spaces %J Vestnik rossijskih universitetov. Matematika %D 2024 %P 494-516 %V 29 %N 148 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTAMU_2024_29_148_a7/ %G en %F VTAMU_2024_29_148_a7