广义区间估计及其最优性(Ⅲ)

在提出了广义区间估计以及其上的最优性概念之后,证明了广义区间估计与假设检验的最优性之间的关系,推演了若干重要区间估计的最优性.     

某些非正交追加设计的泛最优性和广最优性

本文讨论了〔1〕中追加设计的广最优性,同时对另一种非正交追加设计,讨论其泛最优性和广最优性。     

广义区间估计及其最优性〔Ⅲ）

在提出了广义区间估计以及其上的最优性概念之后，证明了广义区间估计与假设检验的最优性之间的关系，推演了若干重要区间估计的最优性．     

关于无穷区间估计与假设检验的最优性

在提出无穷区间估计以及其上的最优性概念之后，证明了无穷区间估计与相应假设检验的最优性之间的关系，及推演了若干重要的无穷区间估计的最优性．     

弱凸向量优化问题的最优性条件

在单目标优化问题全局最优性条件的基础上, 利用抽象微分研究弱凸向量优化问题的最优性条件.     

集值向量极小化问题的最优性条件

用广义相依上导数,描述了含不等式约束的集值向量极小化问题的最优性充分条件与Fritz-John型最优性必要条件。最后还用相依上导数描述了该集值极小化问题的Kuhn-Tucker型最优性必要条件。     

B-（p，r）-不变凸性下广义分式规划的鞍点存在性定理

对于一类目标函数中有无限个分式的广义分式规划,讨论了其最优性充分条件;给出了2个不完全Lagrange函数,并利用已有的最优性必要条件,在B-（p,r）-不变凸性的条件下,证明了鞍点最优性准则．     

半线性椭圆最优控制问题的最优性

文章讨论了半线性椭圆最优控制问题的二阶最优性条件.假设约束集满足一些特殊性质,得到了半线性椭圆最优控制问题的二次增长条件、二阶充分最优性条件和二阶必要的最优性条件.最后证明了这三个条件是等价的.     

带0-1和线性约束的特殊三次规划问题的全局最优性条件

研究了一类带有不等式约束和0-1约束的特殊三次规划问题的全局最优性条件,给出了此问题的一个全局最优性充分必要条件.同时通过数值例子来说明给出的全局最优性充分必要条件是很容易验证的.     

双层多目标规划有效解的二阶最优性条件

在双层多目标规划的一阶最优性条件的基础上,给出了双层多目标规划问题的二阶最优性条件。     

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

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