%0 Journal Article %A L. Qi %A R. S. Womersley %T On Extreme Singular Values of Matrix Valued Functions %J Journal of convex analysis %D 1996 %P 153-166 %V 3 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_1996_3_1_a10/ %F JCA_1996_3_1_a10