On residual variables and stably polynomial algebras
On residual variables and stably polynomial algebras
复制标题
关于残差变量和稳定多项式代数
DOI:
10.1080/00927879308824585
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发表时间:
1993
影响因子:
0.7
通讯作者:
A. K. Dutta
中科院分区:
文献类型:
--
作者:
S. M. Bhatwadekar;A. K. Dutta
Let R be a commutative noetherian ring and let R[X,Y] be a polynomial algebra in two variables over R. Let W be an element of R[X,Y]. In this paper we show that R[X,Y] is a stably polynomial algebra over R[W] if and only if W is a residual variable in R[X,Y]. Moreover, in this case, if either R contains the field of rationals or if Rred is seminormal, then W is a variable in R[X,Y].