%0 Journal Article %A J. Długosz %T A connection between spectral radius and trace %J Colloquium Mathematicum %D 1981 %P 323-326 %V 44 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-44-2-323-326/ %R 10.4064/cm-44-2-323-326 %G en %F 10_4064_cm_44_2_323_326