Radicals of weight one blocks of Ariki-Koike algebras

Yanbo Li, Dashu Xu

Let $K$ be a field and $q\in K$, $q\ne 0,1$. Let ${\mathcal{H}}_n(q,Q)$ be an Ariki-Koike algebra, where the cyclotomic parameter $Q=(Q_1,Q_2,\cdots ,Q_r)\in K^r$ with $r\geq 2…