TY - JOUR AU - P. Hoffman TI - Projective representations of $S_n$: ring structure and inductive formulae JO - Banach Center Publications PY - 1990 SP - 289 EP - 297 VL - 26 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/-26-2-289-297/ DO - 10.4064/-26-2-289-297 LA - en ID - 10_4064__26_2_289_297 ER -