%0 Journal Article %A Wallach, N. R. %A Willenbring, J. %T On Some $q$ -Analogs of a Theorem of Kostant-Rallis %J Canadian journal of mathematics %D 2000 %P 438-448 %V 52 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2000-020-0/ %R 10.4153/CJM-2000-020-0 %F 10_4153_CJM_2000_020_0