Auslander－Gorenstein滤环上的全律模

本文给出了Ａｕｓｌａｎｄｅｒ－Ｇｏｒｅｎｓｔｅｉｎ滤环上全律模（ｈｏｌｏｎｏｍｉｃｍｏｄｕｌｅｓ）的一个特征簇刻划，由此得到了通过特征理想的极小素因子（有限个）计算余维数的公式。     

n—Gorenstein环上的Gorenstein内射模

用Gorenstein内射刻画了n-Gorenstein环。     

n- Gorenstein环上的 Gorenstein内射模(英文)

用 Gorenstein内射模刻画了 n-Gorenstein环 .     

形式三角矩阵环上强Gorenstein平坦模

设Γ是由环R、S和双模SMR组成的形式三角矩阵环.主要讨论环Γ上的模、模同态、模正合列以及模复形.研究了强Gorenstein平坦Γ-模的若干性质及等价刻画,并证明了由模RX和SY以及左-S同态φ:M⊗RX→Y组成的Γ-模是强Gorenstein平坦模,当且仅当RX和SCokerφ均是强Gorenstein平坦模且φ为单同态.     

Gorenstein环上的Gorenstein平坦和内射

设R是一个Gorenstein环. 证明了, 如果I是R的一个理想且使得R/I是一个半单环, 则R/I作为右R-模的Gorenstein平坦维数与R/I作为左R-模的Gorenstein内射维数是相等的. 另外证明了, 如果R→S是一个环同态且_SE是左S-模范畴的一个内射余生成元, 则S作为右R-模的Gorenstein平坦维数与E作为左R-模的Gorenstein内射维数是相等的. 同时给出了这些结果的一些应用.     

相对于半对偶化模的Gorenstein同调维数与Auslander范畴

设$R$是一个局部noether环. 我们在本文中研究了相对于半对偶化模$C$的Gorenstein投射, 内射与平坦模. 给出了$C$-Gorenstein同调维数与$\hat{R}$的Auslander范畴之间的关系.     

Gorenstein fp-平坦和强Gorenstein fp-平坦模

引入了Gorenstein fp-平坦模和强Gorenstein fp-平坦模的概念,讨论了这两类模的一些性质、联系以及稳定性.     

Gorenstein Prüfer整环的一些新刻画

设R是整环.众所周知,R是Prüfer整环当且仅当每个可除模是FP-内射模当且仅当每个h-可除模是FP-内射模.本文引进了一种新的Gorenstein FP-内射模,并且证明了R是Gorenstein Prüfer整环当且仅当每个可除模是Gorenstein FP-内射模,当且仅当每个h-可除模是Gorenstein FP-内射模.     

凝聚环上的Cotilting模

本文首先介绍了ｃｏ－＊－模的概念和刻划了凝聚环的一些性质，然后刻划了凝聚环上的ｃｏｔｉｌｔｉｎｇ模。     

Gorenstein正则环、奇点范畴和Ding模

本文证明了任意环的整体Ding投射维数和整体Ding内射维数一致,研究了奇点范畴和相对于Ding模的稳定范畴间的关系,并刻画了Gorenstein (正则)环以及环的整体维数的有限性.     

Gorenstein Modules over Zariski Filtered Rings

Abstract

We study Gorenstein injective and projective modules over Zariski filtered rings and obtain relations between the Gorenstein dimensions on the category of filtered modules from the associated category of graded modules over the associated graded ring.     

凝聚环上的Cotilting 模(英)

本文首先介绍了co－*－模的概念和刻划了凝聚环的一些性质，然后刻划了凝聚环上的Cotilting模．     

On Semiprime Multiplication Modules over Pullback Rings

We classify all those indecomposable semiprime multiplication modules with finite-dimensional top over pullback of two Dedekind domains. We extend the definition and results given in [9 Ebrahimi Atani , S. , Farzalipour , F. ( 2009 ). Weak multiplication modules over a pullback of Dedekind domains . Colloquium Math. 114 : 99 – 112 .[Crossref] , [Google Scholar]] to a more general semiprime multiplication modules case.     

Strongly Duo Modules and Rings

An R-module M is called strongly duo if Tr(N, M) = N for every N ≤ M _R . Several equivalent conditions to being strongly duo are given. If M _R is strongly duo and reduced, then End _R (M) is a strongly regular ring and the converse is true when R is a Dedekind domain and M _R is torsion. Over certain rings, nonsingular strongly duo modules are precisely regular duo modules. If R is a Dedekind domain, then M _R is strongly duo if and only if either M ≈ R or M _R is torsion and duo. Over a commutative ring, strongly duo modules are precisely pq-injective duo modules and every projective strongly duo module is a multiplication module. A ring R is called right strongly duo if R _R is strongly duo. Strongly regular rings are precisely reduced (right) strongly duo rings. A ring R is Noetherian and all of its factor rings are right strongly duo if and only if R is a serial Artinian right duo ring.     

Some Rings Characterized by Modules

ＳｏｍｅＲｉｎｇｓＣｈａｒａｃｔｅｒｉｚｅｄｂｙＭｏｄｕｌｅｓ￥ＹａｏＺｈｏｎｇｐｉｎｇ；ＷａｎｇＤｉｎｇｇｕｏ（ＬｉａｏｃｈｅｎｇＴｅａｃｈｅｒ＇ｓＣｏｌｌｅｇｅ，Ｌｉａｏｃｈｅｎｇ２５２０５９）（ＱｕｆｕＮｏｒｍａｌＵｎｉｖｅｒａｌｔｙ，Ｑｕｆｕ...     

Feebly Baer Rings and Modules

A right module M over a ring R is called feebly Baer if, whenever xa = 0 with x ∈ M and a ∈ R, there exists e² = e ∈ R such that xe = 0 and ea = a. The ring R is called feebly Baer if R_R is a feebly Baer module. These notions are motivated by the commutative analog discussed in a recent paper by Knox, Levy, McGovern, and Shapiro [6 Knox , M. L. , Levy , R. , McGovern , W. Wm. , Shapiro , J. ( 2009 ) Generalizations of complemented rings with applications to rings of functions. . J. Alg. Appl. 8 ( 1 ): 17 – 40 .[Crossref] , [Google Scholar]]. Basic properties of feebly Baer rings and modules are proved, and their connections with von Neumann regular rings are addressed.     

Injective Hulls of Simple Modules over Differential Operator Rings

We study injective hulls of simple modules over differential operator rings R[θ; d], providing necessary conditions under which these modules are locally Artinian. As a consequence, we characterize Ore extensions of S = K[x][θ; σ, d] for σ a K-linear automorphism and d a K-linear σ-derivation of K[x] such that injective hulls of simple S-modules are locally Artinian.