每个非零理想是素理想幂的交换环

在本文中，我们得到一个关于每个非零理想均是素理相幂的交换环的分类定理。     

Artin环与Noether环的一个刻画

在[1]文中利用极大左理想刻画了Noether环,本文引进Noether左理想、Artin左理想、m左理想等概念(当I是环R的极大左理想时, I既是Noether、Artin的也是m的,此时m=1。),证明了[1]文中相应的结论,给出了相应的Artin环的刻画。 定义1 环R的左理想I称为Artin(Noether),如果R/I是Artin(Noether)R模。 定义2 环R的左理想I称为m理想,如果R/I的任何R子模都可由m个元生成。 本文的主要结论:     

格中的粗素理想

利用同余关系建立了格中的逼近算子,由此定义了格中粗素理想,证明了它是素理想的延伸概念,并讨论了粗素理想的相关性质。     

半素PI-环的本质(单边)理想

本文系统研究了半素ＰＩ－环本质（单边）理想及最大商环的有关性质,从ＰＩ－理论中著名的 Ｒｏｗｅｎ非平凡相交定理出发,证明了半素 ＰＩ－环的本质（单边）理想包合一个本质两边理想（定理７,推论８）,建立了半素ＰＩ－环本质（单边）理想与其中心本质理想的内在联系（定理 ９,推论 １０）,并以此为基础,证明了半素 ＰＩ－环的最大商环是 ＰＩ的（定理 １２）,且半素 ＰＩ－环的每一正则元在其最大商环中是可逆的（定理 １４）．     

关于循环环的理想、素理想和极大理想

研究了循环环R=的理想、素理想和极大理想的个数和结构,得到了如下结论:1)理想:(1)若|R|=∞,则R共有无穷多个理想:;(2)若|R|=n,设n的正因数个数为T(n),则R共有T(n)个理想:.2)素理想:(1)若|R|=∞,设a^2=ka(k≥0),①当k=0时,R的素理想只有R;②当k>0时,R的素理想共有无穷多个,它们是:{0}、R及;(2)若|R|=n>1,设a^2=ka,0≤k.3)极大理想:(1)若|R|=∞,则R有无限多个极大理想,它们是;(2)若|R|=n>1,设n的互不相同的素因数个数为ψ(n),则R共有ψ(n)个极大理想:(pa|p是n的素因数).     

TL-子环和TL-理想--第5篇:素TL-理想和半素TL-理想

引入环的素ＴＬ－理想,全素ＴＬ－理想和半素ＴＬ－理想等概念,并且介绍了它们的一些基本性质,其中Ｔ为任意给定的完备Ｂｒｏｕｗｅｒ格Ｌ上的任意无穷并－分配ｔ－模。此外,还对有单位元的交换环的素ＴＬ－理想和一般的素（全素）ＴＬ－理想的特点进行刻划。     

环的广义Noether性(英)

众所周知,环R是右Noether的当且仅当任意内射右R-模的直和是内射的．本文我们将用Ne-内射模和U-内射模来刻画Ne-Noether环和U-Noether环．     

除环上的全阵环的极小右理想与半素F-环

说环R是F-环,如R含一有限非零元集X,使对任意α∈R,若αR≠0,则αR∩X≠φ(傅昶林)。半素F-环可表为有限个除环上的全阵环的直和(周毅强)。有人指出,这个命题的逆命题是不对的,今给出环为半素F-环的充要条件,先看除环上的全阵环。 设D为一除环,n>1为一自然数,R为D上n阶全阵环。极小右理想均为主右理想、取α=(α_(ij))≠0∈R,设其中某α_(ij)≠0∈D,则     

正规幂环和一致幂环

文[1]首次提出了HX环（幂环）的概念,文[2]探索了幂环的性质和结构,本文类似于幂群的研究,提出了正规幂环和一致幂环的概念,研究了它们的结构和它们之间的关系,对它们进行了分类,并讨论了它们的交与和,从而构造了它们的子环链和理想链。     

The Euler Class Group of a Noetherian Ring

For a commutative Noetherian ring A of finite Krull dimension containing the field of rational numbers, an Abelian group called the Euler class group is defined. An element of this group is attached to a projective A-module of rank = dim A and it is shown that the vanishing of this element is necessary and sufficient for P to split off a free summand of rank 1. As one of the applications of this result, it is shown that for any n-dimensional real affine domain, a projective module of rank n (with trivial determinant), all of whose generic sections have n generated vanishing ideals, necessarily splits off a free direct summand of rank 1.     

Modules with Noetherian Spectrum

Let M be a module over a commutative ring R. A submodule P of M is called prime if P ≠ M and, whenever r ∈ R, e ∈ M, and re ∈ P, we have rM ? P or e ∈ P. We let Spec(M) denote the set of all prime submodules of M. Using a topology analogous to the Zariski topology for Spec(R), we establish necessary and sufficient conditions for Spec(M) to be a Noetherian space. We produce some examples of modules with Noetherian spectrum that have not appeared in the literature previously. In particular, Laskerian modules and faithfully flat modules over Laskerian rings have Noetherian spectra. (The term Laskerian is defined in Section 3.)     

Spectrum of a Noncommutative Ring

R is any ring with identity. Let Spec _r (R) (resp. Spec(R)) be the set of all prime right ideals (resp. all prime ideals) of R and let U _r (eR) = {P ? Spec _r (R) | e ? P}. In this article, we study the relationships among various ring-theoretic properties and topological conditions on Spec _r (R) (with weak Zariski topology). A ring R is called Abelian if all idempotents in R are central (see Goodearl, 1991 Goodearl , K. R. ( 1991 ). Von Neumann Regular Rings. , 2nd ed. Malabar , Florida : Krieger Publishing Company . [Google Scholar]). A ring R is called 2-primal if every nilpotent element is in the prime radical of R (see Lam, 2001 Lam , T. Y. ( 2001 ). A First Course in Noncommutative Rings. , 2nd ed. (GTM 131) . New York : Springer-Verlag .[Crossref] , [Google Scholar]). It will be shown that for an Abelian ring R there is a bijection between the set of all idempotents in R and the clopen (i.e., closed and open) sets in Spec _r (R). And the following results are obtained for any ring R: (1) For any clopen set U in Spec _r (R), there is an idempotent e in R such that U = U _r (eR). (2) If R is an Abelian ring or a 2-primal ring, then, for any idempotent e in R, U _r (eR) is a clopen set in Spec _r (R). (3) Spec _r (R) is connected if and only if Spec(R) is connected.     

Noether模的Artin根

本文定义了Ｎｏｃｔｈｅｒ模的Ａｒｔｉｎ根，给出了Ｎｏｃｔｈｅｒ半局部环上有限生成模的Ａｒｔｉｎ根的刻划．最后，作为Ａｒｔｉｎ根理论的应用，给出了一个关于Ｃｏｈｅｎ－Ｍａｃａｕｌａｙ环的定理及一个模的用ｄｅｐｔｈ和ｋｒｕｌｌ维数表示的公式。     

Analytic Independence of an Ideal Relative to Certain Injective Module Over a Commutative Noetherian Ring

In this paper we will introduce the concepts of analytic independence and analytic spread for ideals relative to certain injective module over a commutative Noetherian ring.     

The Real Spectrum of a Noncommutative Ring and the Artin-Lang Homomorphism Theorem

Let R be a noncommutative ring. Two epimorphisms

$$\alpha_{i}:R\to (D_{i},\leqslant_{i}),\quad i = 1,2 $$

from R to totally ordered division rings are called equivalent if there exists an order-preserving isomorphism ? : (D ₁, ? ₁) → (D ₂, ? ₂) satisfying ? ° α ₁ = α ₂. In this paper we study the real epi-spectrum of R, defined to be the set of all equivalence classes (with respect to this relation) of epimorphisms from R to ordered division rings. We show that it is a spectral space when endowed with a natural topology and prove a variant of the Artin-Lang homomorphism theorem for finitely generated tensor algebras over real closed division rings.

     

环的素谱的若干注记

对于可换环Ｒ,本通过考察ＳｐｅｃＲ和Ｈ０Ｒ,得到了关于广义素环和广义半素环的一些结果,另一方面,本还得到了有关连通性与道路连通性的几个结果。     

The Ideal Completion of a Noetherian Local Domain

The ideal topology on a integral domain R is the linear topology which has as a fundamental system of neighborhoods of 0 the nonzero ideals of R. We investigate the properties of the ideal topology on a Noetherian local domain (R, 𝔪), and we establish connections between the 𝔪-adic completion and the ideal completion. We give conditions under which the completion in the ideal topology is Noetherian, and we show that, unlike the 𝔪-adic completion, the completion in the ideal topology is not always Noetherian.