%0 Journal Article %A Yu, Xiaoxiang %T Centralizers and Twisted Centralizers: Application to Intertwining Operators %J Canadian journal of mathematics %D 2006 %P 643-672 %V 58 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2006-027-4/ %R 10.4153/CJM-2006-027-4 %F 10_4153_CJM_2006_027_4