%0 Journal Article %A Rinehart, R. F. %T P and D in P-1XP = dg(λ, ... , λn) = D As Matrix Functions of X %J Canadian journal of mathematics %D 1966 %P 832-837 %V 18 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-083-0/ %R 10.4153/CJM-1966-083-0 %F 10_4153_CJM_1966_083_0