Noetherian properties in composite generalized power series rings

被引:2
作者
Lim, Jung Wook [2 ]
Oh, Dong Yeol [1 ]
机构
[1] Chosun Univ, Dept Math Educ, Gwangju 61452, South Korea
[2] Kyungpook Natl Univ, Dept Math, Daegu 41566, South Korea
来源
OPEN MATHEMATICS | 2020年 / 18卷
基金
新加坡国家研究基金会;
关键词
D + [[E-Gamma*(,) (<=)]; D + [[I-Gamma*(; generalized power series ring; Noetherian ring;
D O I
10.1515/math-2020-0103
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let (Gamma, <=) be a strictly ordered monoid, and let Gamma* = Gamma\{0}. Let D subset of E be an extension of commutative rings with identity, and let I be a nonzero proper ideal of D. Set D + [[E-Gamma*(,) (<=)]] = {f is an element of [[E-Gamma*(,) (<=)]] vertical bar f (0) is an element of D} and D + [[I-Gamma*(,) (<=)]] = {f is an element of [[D-Gamma*(,) (<=)]] vertical bar f (alpha) is an element of I, for all alpha is an element of Gamma*}. In this paper, we give necessary conditions for the rings D + [[E-Gamma*(,) (<=)]] to be Noetherian when (Gamma, <=) is positively ordered, and sufficient conditions for the rings D + [[E-Gamma*(,) (<=)]] to be Noetherian when (Gamma, <=) is positively totally ordered. Moreover, we give a necessary and sufficient condition for the ring D + [[I-Gamma*(,) (<=)]] to be Noetherian when (Gamma*, <=) is positively totally ordered. As corollaries, we give equivalent conditions for the rings D + (X-1,..., X-n) E [X-1,..., X-n] and D + (X-1,..., X-n) I [X-1,..., X-n] to be Noetherian.
引用
收藏
页码:1540 / 1551
页数:12
相关论文
共 11 条