1- Women's university of Semnan(Farzanegan) , sheibani@fgusem.ac.ir
2- Semnan university
Abstract: (930 Views)
Abstract: A ring R is called a refinement ring if the monoid of finitely generated projective R- modules is refinement. Let R be a commutative refinement ring and M, N, be two finitely generated projective R-nodules, then M~N if and only if Mm ~Nm for all maximal ideal m of R. A rectangular matrix A over R admits diagonal reduction if there exit invertible matrices p and Q such that PAQ is a diagonal matrix. We also prove that for every refinement ring R, every regular matrix over R admits diagonal reduction if and only if every regular matrix over R/J(R) admits diagonal reduction.
Type of Study:
S |
Subject:
alg Received: 2020/06/29 | Revised: 2023/06/18 | Accepted: 2021/02/7 | Published: 2022/12/20 | ePublished: 2022/12/20