矩阵方程和分散扰动解耦

本文给出了矩阵方程A_iXB_i=O,i∈2解空间的一组基。利用这组基,对两个控制站的输出反馈分散扰动解耦问题给出了一个新的证明。     

薄的海森伯格对的可裂基

设A,A*是薄的海森伯格对,则存在V的可裂基,使得A在这组基下的矩阵是下两对角矩阵,A*在这组基下的矩阵是上两对角矩阵.给出了在这组基下一些矩阵的关系式和A,A*的本原幂等元的表达式.最后,给出了可分序列的关系式.     

C~2C~3中Bell基型不可拓展的最大纠缠基和互不偏基

先在C2C3中得到一组Bell基型完备的不可拓展的最大纠缠基,再通过构造C3的一个标准正交基给出另一组Bell基型完备的不可拓展的最大纠缠基,同时保证这两组基是互不偏的,并给出两类Bell基型互不偏的不可拓展的最大纠缠基.     

A型退化仿射Hecke代数的Grbner-Shirshov基

给出了A型退化仿射Hecke代数的Grbner-Shirshov基,并且用此Grbner-Shirshov基和结合代数的钻石合成引理,给出A型退化仿射Hecke代数的一组线性基。     

关于域扩张上的正规基(英文)

以有限域中两组对偶正规基之间的等价的条件作为特殊情形,作者给出了域扩张中两组正规基、对偶正规基、多项式基之间的等价条件,将正规基的等价条件推广到一般的扩域中.     

二元常系数齐次线性微分方程组的基解矩阵

利用方程组系数矩阵的特征根,给出二元常系数齐次线性微分方程组的基解矩阵的表达式,同时也给出求二元常系数齐次线性微分方程组的基解矩阵的另一种方法。     

U+A''的基及其基变换

设UA'是A'上A2型量子代数,给出了UA'的子代数U+A'的两组基及其基变换.     

紧支集正交小波基的构造

应用Riesz引理构造一组紧支集上的正交小波基,并且给出了构造紧支集正交小波基的过程.     

A2型量子代数Verma模的典范基和极大向量

给出了A2型量子代数Vcrma模Y（z）的两组典范基,在基上直接计算出了Y（z）的所有极大向量．     

Hamming图H(D,q)与Hadamard乘法

本文给出了Hamming图H(D,q)的标准模上的一组基{ˇy|y∈X},并讨论了该基在Hadamard乘法下的性质.     

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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