The stable rank of pullbacks

JOURNAL OF ALGEBRA

卷:410

Article

Vaserstein, L. N.

关键词: Stable rank;    Fibre products of rings;   

DOI  :  10.1016/j.jalgebra.2014.04.008

来源: Elsevier

【 摘 要 】

We prove that the stable rank of any pullback (fibre product) does not exceed the stable ranks of factors. We obtain also another result bounding the stable rank of a ring by the stable ranks of its factor rings. (C) 2014 Elsevier Inc. All rights reserved.

【 授权许可】

Free