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1.
非可换正定关联BCK-代数白根柱(内蒙古民族师范学院数学系)我们在文[3]中证明了正定关联BCK-代数的Iseki扩张是正定关联BCK-代数,本文对关联BCK-代数的Iseki扩张进行探讨。为便于叙述先给出几个定义 ̄[1,2]。定义1设X=<X;0>...  相似文献   

2.
证明了多重强关联BCK-代数与多重正关联BCK-代数是一致的,从而给出多重正关联BCK-代数的一个刻划,并利用这个刻划讨论了多重正关联BCK-代数的几个性质。  相似文献   

3.
引进了多重正关联BCK-代数,并讨论了它的一些性质,从而使正关联BCK-代数与n级正关联BCK-代数得到真正的推广。  相似文献   

4.
引进了多重正关联BCK-代数,并讨论了它的一些性质,从而使上正关联BCK-代数与n级正关联BCK-代数得到真正的推广。  相似文献   

5.
周期BCK代数的极大元扩张与主理想   总被引:1,自引:0,他引:1  
引入BCK代数的一种新的扩张方法-极大元扩张;并着重刻划周期BCK代数与其极大元扩张关于主理想的一些特有性质。  相似文献   

6.
分别对BCK-代数对偶理想的充要条件和有界关联BCK-代数关于对偶理想的商代数进行了研究.  相似文献   

7.
关于BCI-代数的不动点   总被引:1,自引:0,他引:1  
在BCI-代数中引进不动点的概念,对含有不动点的BCI-代数进行刻划,证明了具有不动点的真BCI-代数等价子BCK-代数的一点扩张;每个元都是不动点的BCK-代数等价于可解BCK-代数.  相似文献   

8.
在BCI-代数中引进不动点的概念,对含有不动点的BCI-代数进行刻划,证明了具有不动点的真BCI0-代数等价于BCK-代娄物一点扩张;每个元都是不动点的BCK-0代数等价于可解BCK-代数。‘  相似文献   

9.
建立了关联BCK代数与立体格公理系统的联系.  相似文献   

10.
本文是文[1]的继续。本文讨论了关联算子代数的BCK代数特征。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

15.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

16.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

17.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

18.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

19.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

20.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

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