Additive Unit Representations in Endomorphism Rings and an Extension of a Result of Dickson and Fuller
Additive Unit Representations in Endomorphism Rings and an Extension of a Result of Dickson and Fuller
A module is called automorphism-invariant if it is invariant under any automorphism of its injective hull.Dickson and Fuller have shown that if R is a finite-dimensional algebra over a field F with more than two elements then an indecomposable automorphism-invariant right R-module must be quasi-injective.In this note, we extend and …