%0 Journal Article %A Peng Fan %T Cartesian and Polar Decompositions of Hypernormal Operators. %J Mathematische Zeitschrift %D 1984 %P 485-492 %V 188 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1984__188_173555/ %F MZ_1984__188_173555