Specht module

Specht modules are some very nice $\mathbb{Z}[{S}_{n}]$ modules which are irreducible? after base change to $\mathbb{Q}$. Over a field of characteristic $p$, where $p\mid n!$, the base changes are not irreducible, but every irreducible module appears as the cosocle? of a Specht module.

Revised on October 28, 2009 18:33:15
by Toby Bartels
(173.51.68.54)