Automorphisms of Formal Matrix Rings

Abstract

We study automorphism groups of formal matrix algebras. We also consider automorphisms of ordinary matrix algebras (in particular, triangular matrix algebras).

Formal Matrix Rings: Isomorphism Problem

“…All factor matrices of such rings are (01)-matrices. Papers [7], [9] and [10] contain various material on automorphism groups of formal matrix rings.…”

On Realization and Isomorphism Problems for Formal Matrix Rings

“…We note that papers [7], [9] and [10] contain various material on automorphism groups of (01)-formal matrix rings.…”