%0 Journal Article %A Jacek DziubaƄski %A Andrzej Hulanicki %A Joe Jenkins %T A nilpotent Lie algebra and eigenvalue estimates %J Colloquium Mathematicum %D 1995 %P 7-16 %V 68 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-68-1-7-16/ %R 10.4064/cm-68-1-7-16 %G en %F 10_4064_cm_68_1_7_16