Formal Matrix Rings: Isomorphism Problem
arXiv:2301.03219
Abstract
We consider the isomorphism problem for formal matrix rings over a given ring. Principal factor matrices of such rings play an important role in this case. The work is supported by Russian Scientific Foundation, project 23-21-00375 (P.A. Krylov) and project 22-11-00052 (A.A. Tuganbaev).
arXiv admin note: substantial text overlap with arXiv:2211.02957