集值耗散映射的不动点

本文讨论了度量空间中集值耗散映射的不动点问题，给出了集值耗散映射存在不动点的一些条件，同时使得著名的ａｒｉｓｔｉ，丁。不动点定理成为本文所得结果的一个推论。     

两个度量空间中集值映象的不动点定理

本文证明了两个度量空间集值映象的一个不动点定理,另一个关于紧度量空间的类似结果也被证明。     

MENGER概率度量空间中集值映象序列的混合不动点

本文在Ｍｅｎｇｅｒ概率度量空间中提出混合不动点概念，研究了集值映象序列的公共混合不动点定理，所得结果改进和推广了近期相关的重要结果。     

B度量空间中集值映象的不动点定理

讨论了B度量空间中一些集值映象的不动点的存在性问题，得到了一些新的不动点定理。     

集值耗散映射的不动点

本文讨论了度量空间中集值耗散映射的不动点问题，给出了集值耗散映射存在不动点的一些条件，同时使得著名的Ｃａｒｉｓｔｉ，丁．不动点定理成为本文所得结果的一个推论。     

概率度量空间中映象序列及集值映象的不动点定理

本文得出了概率度量空间中映象序列及集值映象的几个不动点定理,部份结果推广了[2]的某些主要结果。     

集值映射的不动点定理与Caristi不动点定理的推广

证明一条集值映射的不动点定理，并给出Ｃａｒｉｓｔｉ不动点定理的一个推广，它推广了已有的结果。     

概率度量空间中集值映象公共不动点定理对于Fuzzy映象的推广

对Ｆｕｚｚｙ映象序列提出公共不动点定理，所得的结果改进和推广了Ｏ．Ｈǎｄｚｉｃ，Ｊ．Ｘ．Ｆａｎ，Ｓ．Ｓ．Ｃｈａｎｇ等的结果。     

关于集值映象对与单值映象的公共不动点

在单值映象与集值映象相容或次相容的条件下,给出了完备凸度量空间中集值映象对与单值映象存在公共不动点的一个充要条件,改进和推广了某些已知结果.     

相容映象的不动点定理

讨论了完备度量空间中相容映象对在单值和多值情形下，满足一定条件时的不动点定理，并给出了一些有用的推论，这些结果是交换映象和弱交换映象不动点定理的相应推广．     

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.     

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.     

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     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has