Rouquier Blocks in Chevalley Groups of Type E
Hyohe Miyachi
Preprint

In finite Chevalley groups of type E, we shall find a 'Rouquier' like
block algebra in non-defining characteristic. We construct a Morita
equivalence between this block and a principal block of a local
subgroup. As an application of the equivalence, we shall determine
some decomposition numbers in type E.