The stable rank of $\mathbb{Z}[x]$ is $3$

التفاصيل البيبلوغرافية
العنوان: The stable rank of $\mathbb{Z}[x]$ is $3$
المؤلفون: Guyot, Luc
سنة النشر: 2021
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Commutative Algebra, 13D15 (Primary), 13B25 (Secondary)
الوصف: Grunewald, Mennicke and Vaserstein proved that the Bass stable rank of $\mathbb{Z}[x]$, the ring of the univariate polynomials over $\mathbb{Z}$, is $3$. This note addresses minor errors found in their proof. Using their method, we show in addition that the unimodular row $(3, x + 1, x^2 + 16)$ is not stable.
Comment: 9 pages, no figure. This new version integrates suggestions from Pace Nielsen, Alain Valette and Yves Cornulier. Proposition B displays now a simpler unstable unimodular row
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2111.02965
رقم الأكسشن: edsarx.2111.02965
قاعدة البيانات: arXiv