%0 Journal Article %A Rosen, Lon %T Positive Powers of Positive Positive Definite Matrices %J Canadian journal of mathematics %D 1996 %P 196-209 %V 48 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1996-009-9/ %R 10.4153/CJM-1996-009-9 %F 10_4153_CJM_1996_009_9