%0 Journal Article %A John B. Conway %A Gabriel Prǎjiturǎ %T On $\lambda $-commuting operators %J Studia Mathematica %D 2005 %P 1-9 %V 166 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm166-1-1/ %R 10.4064/sm166-1-1 %G en %F 10_4064_sm166_1_1