超凸度量空间中一类单调型集值映射拟变分不等式解的存在定理

文章得到了超凸度量空间中两个新的一类单调型集值映射拟变分不等式解的存在定理。     

超凸度量空间中的极大极小不等式和拟变分不等式

用连续迭取方法得到了超凸距离空间上集值映射的一个不动点定理。作为应用，给出了超凸距离空间中的一个极小极大定理和广义拟变分不等式解的一个存在性定理。     

有界凸多面体的顶点与线性不等式组解之间的关系

利用凸集表示定理,给出了有界凸多面体的顶点与其对应线性不等式组解之间的关系,间接地获得了不等式组的解。     

詹生（Jensen）不等式的推广

本文所推导的定理均是将Ｊｅｎｓｅｎ不等式及其积分形式拓广为ｍ维，并将原定理中加权平均值或算术平均值概念推广成与（其中所有αｉ＞０，且）的形式得出。Ｊｅｎｓｅｎ不等式只是本文所述定理的一个特例（即令ｍ＝１．ｇ（ｘ）≡ｘ即得）。所以本文所述定理可使由詹生不等式导出的某些重要不等式得以进一步推广。     

由等周不等式讨论均匀分布

本文简单介绍了平面等周不等式,将周长为定值的凸集的面积因素视为随机变量,验证了它服从均匀分布,并在这一条件下,讨论了Δ2(K)的上界与下界的分布,最后在Rn中的等周不等式以及几个定理作进一步讨论.     

H—空间中的一些变分不等式

本文利用广义Gwinner定理,证明了H-空间中一些变分不等式解的存在定理,所得结果是Guinner和[6]中相应结果的推广。     

超凸度量空间中的Ky Fan型截口定理

文章给出了超凸度量空间中的一个Ky Fan型截口定理及其等价定理，作为它们的应用，得到了一些极大极小定理和一个重合定理。     

P型空间中的ky-fan不等式

通过连续函数族定义一个凸空间,在没有明确的线性结构的情况下,应用P型空间性质,利用Browder不动点定理与一般的KyFan极大极小不等式为基础得到了一个P型空间中的KyFan极大极小不等式,同时得到了KyFan极大极小不等式的几何形式。     

抽象凸空间的KKM定理及其应用

首先改进了文献[1]中的KKM定理并应用这一定理证明了择一不等式,变分不等式存在性的结果和不动点存在性定理。     

GA-凸函数的Hadamard型不等式

通过对GA-凸函数的深入研究,应用凸函数的Hadamard型不等式和GA-凸函数的一个充要条件,得到了GA-凸函数的一种形式更为简洁的Hadamard型不等式.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

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

正~~