ABSOLUTELY E-PURE MODULES AND E-PURE SPLIT MODULES

来源 :数学物理学报(英文版) | 被引量 : 0次 | 上传用户:fzh5569
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
We first introduce the concepts of absolutely E-pure modules and Epure split modules. Then, we characterize the IF rings in terms of absolutely E-pure modules. The E-pure split modules are also characterized.
其他文献
By using the solution to the Helmholtz equation △u- λu = 0 (λ≥ 0),the explicit forms of the so-called kernel functions and the higher order kernel functions
The hydraulic characteristics at the side inlet/outlet of pumped storage plants is studied by numerical simulations, covering the flow distribution, head loss,
V(HSO4)3 has been found to be an efficient reagent for the promotion of the oxidation of alcohols and trimethylsilyl,tetrahydropyranyl and methoxymethyl ethers
As an intriguing interdisciplinary research field,cell and molecular biomechanics is at the cutting edge of mechanics in general and biomechanics in particular.
Two new steroidal glycosides named eyanoauriculoside A(1)and B(2),have been isolated from the roots of Cynanchum auriculatum Royle ex Wight.The structure of cya
HNO3-pretreated CNTs were employed as supports,and a special ultrasound-assisted impregnation method was designed to prepare supported Cu-Co catalysts for highe
A theoretical method to calculate the mode of polyurethane(PU) prepolymers grafted to polyacrylic(PAC)was presented. Using hydroxyethyl acrylate(HEA) as couplin
The 1,4-diazabicyclo[2.2.2]octane(DABCO)catalyzed reaction of cyclohexane-1,3-dione or dimedone with various aldehydes in acetonitrile resulted in the polysubst
Novel graphene nanosheet(GNS) supported Cu-Ni bimetal catalysts were firstly synthesized and used for the direct synthesis of dimethyl carbonate(DMC).The experi