共查询到20条相似文献,搜索用时 156 毫秒
1.
宫子琨 《数学年刊A辑(中文版)》1988,(2)
本文给出了一类满足零化子升链条件的环是半素环的一些充要条件 证明了:一个有右Krull维数(或是右非奇异)的满足右零化子升键条件的环R,若R有右Artin右分式环,则R是半素环的充要条件是R的任一极小素理想不是本质右理想。 相似文献
2.
Γ-环与广义Γ-环的强幂零根与拟强幂零根 总被引:5,自引:2,他引:3
陈维新在[1]中讨论了什么条件下的Г-环的任一强诣零子环一定是强幂零子环?本文将利用这些结果进一步讨论,什么条件下的Г-环必有强幂零根?也就是:什么条件下的Г-环的所有强幂零理想之和仍是强幂零理想?回答是,具下列条件之一即可:① Noether条件,②Goldie条件,③左、右零化子升链条件,④左、右零化子降链条件,⑤左(或右)零化子升链和降链条件,⑥强幂零理想极大条件,⑦强幂零子环极大条件,⑧左(或右)零因子极大条件,⑨强诣零左(或右)理想极小条件,⑩Artin条件。本文还针对Г-环的所有强幂零理想之和未必 相似文献
3.
4.
1955年谢邦杰给出一个定理:左零化子具升链条件的诣零环为Baer根环。Herstein,I.N.于1964年得到类似结果。本文给出此定理的一个短证。 设R为一环,α∈R,L(α)={r|r∈R, rα=0}是α的在R内的左零化子。R是Baer根环,当且仅当R的任意非零同态像含有非零的幂零理想。 定理 左零化子具升链条件的诣零环R为Baer根环。 相似文献
5.
左零因子理想具升链条件之环 总被引:3,自引:0,他引:3
Herstein,I.N.(1964)猜想在“左零化子具升链条件”的情况下,一个诣零环必为幂零的(参看[1])。但不久就由Sasiada作出一个非幂零的谐零环而其中的左零化子满足升链条件,这个反例否定了上述猜想。 本文则是把上述条件稍为加强一点而证实了如此的环的诣零单边理想恒为幂零的,自然这样的诣零环就更是幂零的了。 相似文献
6.
关于环的极大本质右理想 总被引:7,自引:0,他引:7
设R为环,我们考虑下面两个条件。(*)R的每个极大本质右理想是GP-内射右R-模或右零化子.(*)R的每个极大本质右理想是YJ-内射右R-模.本文旨在研究满足条件(*)或(*)的环,同时我们还给出了强正则环和除环的一些新刻画. 相似文献
7.
8.
P-内射性在环论研究中有独特的作用,并且越来越被人们所重视.本文的目的是利用p-内射性来刻化Artin半单环,我们得到如下主要结果:(1)环R是Artin半单的当且仅当R是p-内射的,R的左奇异理想是闭右理想,且R满足特殊左零化子升链条件;(2)环R是Artin半单的当且仅当R的每个极大本质左理想是左零化子,并且任意奇异单左R-模是p-内射的;(3)素环R是Artin单的当且仅当R的右基层S≠0是左p-内射的,并且R满足特殊左零化子升链条件.这些结果不仅加深了对Artin半单环的认识,而且建立了半单环与某 相似文献
9.
MHR-环指的是其主右理想适合极小条件的环.本文的环指的是结合环,未必有单位元. F.A.Szasz在他的专著“Radical of Rings”[1]中提出一系列问题,其中第31问题是:是否存在一个诣零MHR-环(或任意MHR-环),其有限生成右理想不适合极小条件?本文证明了:任意一个MHR-环其有限生成右理想均适合极小条件.从而给出了F.A.Szasz第31问题的完全解答. 相似文献
10.
曾庆怡 《纯粹数学与应用数学》2018,(1):26-41
结合ACS环和p.q-Baer环的定义,本文将p.q-Baer环推广到PCS环,这样在p.q-Baer环和ACS环之间存在一类新的环,PCS环.环R称为PCS-环,如果R的每个主理想的右零化子作为右理想在一个由幂等元生成的右理想中是本质的.PCS-环包括所有的右p.q-Baer环,所有的右FI-扩展环,以及所有的交换的ACS-环.通过研究环主右理想的零化子的性质和模的本质子模的性质,研究了三种环之间的关系,推广了p.q-Baer环的结果,得到了ACS环所没有的结果,同时研究了环的扩张问题,证明了强PCS性质是Morita等价性质. 相似文献
11.
12.
B.G. Kang 《Journal of Pure and Applied Algebra》2007,211(1):51-54
The main theorem of this article is an extension of the generalized principal ideal theorem for ideals in Noetherian rings. Instead of requiring the rings to be Noetherian, some natural requirements are imposed on the chains of prime ideals under consideration. The standard (Noetherian) version of the generalized principal ideal theorem is deduced as a corollary and two other applications are presented. 相似文献
13.
14.
We say a ring R is (centrally) generalized left annihilator of principal ideal is pure (APP) if the left annihilator ? R (Ra) n is (centrally) right s-unital for every element a ∈ R and some positive integer n. The class of generalized left APP-rings includes generalized left (principally) quasi-Baer rings and left APP-rings (and hence left p.q.-Baer rings, right p.q.-Baer rings, and right PP-rings). The class of centrally generalized left APP-rings is closed under finite direct products, full matrix rings, and Morita invariance. The behavior of the (centrally) generalized left APP condition is investigated with respect to various constructions and extensions, and it is used to generalize many results on generalized PP-rings with IFP and semiprime left APP-rings. Moreover, we extend a theorem of Kist for commutative PP rings to centrally generalized left APP rings for which every prime ideal contains a unique minimal prime ideal without using topological arguments. Furthermore, we give a complete characterization of a considerably large family of centrally generalized left APP rings which have a sheaf representation. 相似文献
15.
In this paper we study right S-Noetherian rings and modules, extending notions introduced by Anderson and Dumitrescu in commutative algebra to noncommutative rings. Two characterizations of right S-Noetherian rings are given in terms of completely prime right ideals and point annihilator sets. We also prove an existence result for completely prime point annihilators of certain S-Noetherian modules with the following consequence in commutative algebra: If a module M over a commutative ring is S-Noetherian with respect to a multiplicative set S that contains no zero-divisors for M, then M has an associated prime. 相似文献
16.
We extend a theorem of Kist for commutative PP rings to principally quasi-Baer rings for which every prime ideal contains
a unique minimal prime ideal without using topological arguments. Also decompositions of quasi-Baer and principally quasi-Baer
rings are investigated.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
17.
《Quaestiones Mathematicae》2013,36(1):15-32
Abstract In this paper we define two concepts of prime ideals for Ω-groups. The first generalizes the definitions of prime ideal in rings, nearrings, Γ-rings, associative algebras and Lie algebras. The second generalizes a concept defined for groups by ??ukin ([21]). We show that both lead to radicals in the sense of Hoehnke ([10]). Furthermore in the case of rings, Γ-rings, abelian zero-symmetric nearrings and cubic rings these two definitions coincide, thus obtaining a new characterization for the prime ideal. Zero-symmetric Ω-groups are defined analogously to the nearring case and a new characterization in term of ideals is given. 相似文献
18.
A famous theorem of commutative algebra due to I. M. Isaacs states that “if every prime ideal of R is principal, then every ideal of R is principal”. Therefore, a natural question of this sort is “whether the same is true if one weakens this condition and studies rings in which ideals are direct sums of cyclically presented modules?” The goal of this paper is to answer this question in the case R is a commutative local ring. We obtain an analogue of Isaacs's theorem. In fact, we give two criteria to check whether every ideal of a commutative local ring R is a direct sum of cyclically presented modules, it suffices to test only the prime ideals or structure of the maximal ideal of R. As a consequence, we obtain: if R is a commutative local ring such that every prime ideal of R is a direct sum of cyclically presented R-modules, then R is a Noetherian ring. Finally, we describe the ideal structure of commutative local rings in which every ideal of R is a direct sum of cyclically presented R-modules. 相似文献
19.
A. I. Hatalevych 《Ukrainian Mathematical Journal》2010,62(1):151-154
We study noncommutative rings in which the Jacobson radical contains a completely prime ideal. It is proved that a right Bézout
ring in which the Jacobson radical contains a completely prime ideal is a right Hermite ring. We describe a new class of Bézout
rings that are not elementary divisor rings. 相似文献
20.
The purpose of this paper is to generalize the concept of semi prime ideals in Γ-rings. We use a general definition of a regularity F for Γ-rings to define and F- prime ideal. Relationships between F-semi prime ideals of a Γ-ring M and F-semi prime ideals of the operator rings R and L are discussed. D-regularity, f-regularity and λ-regularity for Γ-rings are introduced and studied against the background of the concept F-semi prime ideal. Finally, D-, λ- and f-regular Γ-rings are characterized. 相似文献