关于值域分解定理的一点注记

本文证明了下列定理：如果ｆ：Ｘ→Ｙ是连续闭映射，Ｘ是点星形正紧严格ｐ空间，则其中对每个ｙ∈Ｙ０，ｆ１（ｙ）是Ｘ的紧子集且对每个ｎ∈Ｎ，Ｙｎ是Ｙ的离散闭子集，从而一般化了文［３］的相应结果。     

E－自反逆半群的一个结构定理

设Ｃ＝［Ｙ，Ｇａ；］是Ｃｌｉｆｆｏｒｄ半群，是一偏序集，是Ｘ的子半格理想，群Ｇａ作为自同构群作用于Ｘ＿ａ，且另外，假设下列条件成立：（１）若ｘ＿ａ≤ｙ，则ａ≤β；（ｉｉ）若ｘ＿ａ≤ｙ＿β，ｈ＿β∈Ｇ＿β，则，（ｉｉｉ）（ｉｖ）著，则令．定义乘法：获得了下面的定理。结构定理：逆半群Ｓ是Ｅ－自反的当且仅当Ｓ同构于某个Ｗ（Ｚ，Ｃ，Ｘ）．     

集值映象的KyFan变分不等式解的存在定理

设Ｘ是局部凸Ｈａｕｓｏｄｒｆｆ拓扑线空间Ｅ的非空凸子集，Ｇ：Ｘ→２＾Ｅ是连续的非空紧凸值集值映象，设ｇ：Ｘ→Ｅ是连续映身，Ｓ包含于Ｘ是非空紧凸集，Ｋ包含Ｘ是紧集，Ｐ是Ｅ上一连续半范围，若下列条件满足：（ｉ）对每－ｙ∈Ｘ／Ｋ，存在ｘ∈Ｓ，使得Ｐ（ｘ－Ｇｙ）〈Ｐｇ（ｙ）－Ｇ（ｙ）（ｉｉ）存在ｙ∈Ｘ，使得对任意Ｘ∈Ｓ有Ｐ（ｇ（ｙｂ）－Ｇｙ０）≤Ｐ（ｘ－Ｇｙｂ）Ｐ（ｇ（ｘ）－Ｇｘ）≤Ｐ（ｘ－Ｇｘ）。则存在     

关于广义Fibonacci矩阵的Fermat方程

设ｍ是大于１的正整数，Ａｍ是ｍ阶广义Ｆｉｂｏｎａｃｃｉ矩阵，＝｛Ａｋｍ｜ｋ∈Ｚ，ｋ≥０｝，本文证明了：Ｆｅｒｍａｔ方程Ｘｎ＋Ｙｎ＝Ｚｎ，Ｘ、Ｙ、Ｚ∈Ｚ，ｎ∈ＩＮ，ｎ＞２，无解（Ｘ，Ｙ，Ｚ，ｎ）。     

函数空间Z^X×Y与（Z^Y）^X的同胚

对于一般的空间Ｘ、Ｙ、Ｚ，函数空间Ｚ＾Ｘ×Ｙ与函数空间（Ｚ＾Ｙ）＾Ｘ未必同胚，本文利用Ｒ．Ｂｒｏｗｎ在［１］中给出的拓扑，得到了空间Ｚ＾Ｘ×Ｙ与空间（Ｚ＾Ｙ）＾Ｘ拓扑同胚的定理，同时给出了函数空间（Ｚ＾Ｙ）＾Ｘ与（Ｚ＾Ｘ）＾Ｙ不是自然同胚的反例，从而回答了Ｓ．Ｗｙｌｉｅ提出的问题。     

零对称BZ—代数

将原子及其分支的概念引信ＢＺ－代数，提出零对称ＢＺ－代数，得到若干重要特征。研究零对称ＢＺ－代数Ｘ关于其理想Ｎｚ（Ｘ）＝｛ｘ∈Ｘ│０－ｘ≤ｘ｝所作为的商代数Ｘ／Ｎｚ（Ｘ０的结构，证得Ｘ／Ｎｚ（Ｘ）≌｛ｙ│ｙ＝（０－ｘ）－ｘ，ｘ∈Ｘ｝。     

一个二元生成群的元素形式

讨论了具有定义关系ｘ－１ｙｘ＝ｙｋ（ｋ∈Ｚ）的二元生成群Ｇ＝＜ｘ，ｙ＞的元素形式．主要结论是Ｇ的元素能表示成形式ｘｍｙｎ（ｍ，ｎ∈Ｚ）当且仅当ｋ＝±１或ｙ的阶有限；当且仅当＜ｙ＞Ｇ．     

一类特殊近环的序和导子

我们引入一类非结合近环－零积结合分配生成近环，研究它的Ａｂｉａｎ序关系和导子．我们的主要结果是：（１）设Ｘ是零积结合分配生成约化近环Ｎ的子集，ｃ∈Ｎ，则ｃ＝ＳｕｐＸ当且仅当ｃ是Ｘ的一个上界且Ａ（Ｘ）＝Ａ（ｃ）；（２）设Ｘ＝｛ｘｉ｜ｉ∈Ｉ｝，Ｙ＝｛ｙｉ｜ｊ∈Ｊ｝是Ｎ的两个正交子集，ＳｕｐＸ＝ｘ，ＳｕｐＹ＝ｙ，Ｚ＝｛ｘｉｊｉ｜ｉ∈Ｉ，ｊ∈Ｊ｝，则Ｚ是Ｎ的一个正交子集且ＳｕｐＺ＝ｘｙ；（３）一个挠自由零积结合分配生成约化近环不容纳一个非零的幂零导子。     

半素环的一个交换性定理

证明了半素环Ｒ为交换的，如果它满足条件（αｋ）：对任意ａ，ｂ∈Ｒ，存在一个字长＞Ｋ且含有（ｘｙ）２（或（ｙｘ）２）的字Ｗ（ｘ，ｙ）及一个能被Ｗｘ（ｘｙ）整除的整系数多项式ｆ_Ｘ（ｘ，ｙ），使得ａｂ~Ｋ－ｆ_Ｘ（ａ，ｂ）∈Ｚ（Ｒ），其中Ｋ是一个给定的正整数，ＷＸ（ｘ，ｙ）与ＦＸ（ｘ，ｙ）均可随Ｘ－（ａ，ｂ）而变，Ｚ（Ｒ）是环Ｒ的中心。     

矩阵方程AXB＋CYD＋EZF=G的通解

利用含两个未知矩阵Ｘ、Ｙ的矩阵方程ＡＸＢ＋ＣＹＤ＝Ｇ解的相容性、唯一性以及通解,来讨论含三个未知矩阵Ｘ、Ｙ、Ｚ的方程ＡＸＢ＋ＣＹＤ＋ＥＺＦ＝Ｇ解的相容性、唯一性及通解。     

Markedness and its Interpretation in Language Use

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.     

Features of Women's language

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

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.     

Lower Paleozoic oil relationships within Williston Basin, Canada

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.     

低渗透非均质砂岩油藏启动压力梯度研究

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。     

On Tragic Consciousness In The Works By Ernest Hemingway

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.     

Design and analysis of generic LBS application developing platform

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.     

Achieving Unusual States of Matter Under High Pressure

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-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

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-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

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