:: Volume 8, Issue 3 (Vol. 8,No. 3, 2022) ::
2022, 8(3): 132-143 Back to browse issues page
Diagonal Matrix Reduction over Refinement Rings
Marjan Sheibani Abdolyousefi1, Raham Bahmani Sangesari2, Nahid Ashrafi2
1- Women's university of Semnan(Farzanegan) , sheibani@fgusem.ac.ir
2- Semnan university
Abstract:   (182 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 ~Nfor 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.  
Keywords: refinement, projective, exchange, diagonal reduction, regular
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Type of Study: S | Subject: alg
Received: 2020/06/29 | Revised: 2023/01/4 | Accepted: 2021/02/7 | Published: 2022/12/20 | ePublished: 2022/12/20

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Volume 8, Issue 3 (Vol. 8,No. 3, 2022) Back to browse issues page