%0 Journal Article %A Konstancja Bobecka %A Jacek WesoĊ‚owski %T Multiplicative Cauchy functional equation in the cone of positive-definite symmetric matrices %J Annales Polonici Mathematici %D 2003 %P 1-7 %V 82 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap82-1-1/ %R 10.4064/ap82-1-1 %G en %F 10_4064_ap82_1_1