TY - JOUR AU - Giovanni Gaiffi TI - The actions of Sn+1 and Sn on the cohomology ring of a Coxeter arrangement of type An-1. JO - Manuscripta mathematica PY - 1996 SP - 83 EP - 94 VL - 91 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM2_1996__91_3_156216/ ID - MM2_1996__91_3_156216 ER -