Section JacobsonDensity.
Variables (gT : finGroupType) (G : {group gT}) (n : nat).
Variable rG : mx_representation F G n.
Hypothesis irrG : mx_irreducible rG.
Local Notation E_G := (enveloping_algebra_mx rG).
Local Notation Hom_G := 'C(E_G)%MS.

Lemma cent_mx_scalar_abs_irr : \rank Hom_G <= 1 -> mx_absolutely_irreducible rG.