关于一类算子的共鸣定理

本文将证明一类非线性算子的共鸣定理。设Λ是任意指标集,X是一个第二纲的赋β*范空间,Xλ是赋准范空间(λ∈Λ),Aλ是X到Xλ内的次减算子,当{A∈λ}满足本文中定理1的条件时,有supλsup‖x‖*≤r‖Aλ(x)‖∞成立。     

λ-Horn集上的λ-单元锁归结

本文给出了λ-Horn集上的λ-单元锁归结方法,并证明了λ-单元锁归结方法对λ-恒假公式是完备的。     

蛋白质纤维的导热性及其方向性差异

纤维沿轴向导热系数λＦＬ与沿径向导热系数λＦＴ之间有差异。本文用非稳态导热测试方法测得了５种蛋白质纤维及７种其他纺织纤维的λＦＬ和λＦＴ，被测纤维的λＦＬ和λＦＴ之比约达２～２０倍。     

单纯三元系的相交数问题

λ重单纯三元系是不包含重复区组的λ重三元系.本文解决了v阶λ1重三元系和v阶λ2重三元系的相交数问题,其中(1λ,2λ)=(1,2),(1,3),(2,3).     

三角剖分图的色多项式

本文给出多项式f(λ)=(λ-i)(λ-j)[λ(λ-1)…(λq)],1≤i≤j≤是 q T-多项式的一个充分必要条件,并给出f(λ)=λ(λ-1)~(n_1)(λ-2)~(n_2)…(λ-q)~(n_q)是 T-多项式的一个必要条件,其中 q≥4.n_1,n_2,…,n_q 是正整数.     

关于一类算子的共鸣定理

本文将证明一类非线性算子的共鸣定理。设Λ 是任意指标集,X 是一个第二纲的赋β*范空间,Xλ是赋准范空间(λ∈Λ),Aλ是X 到Xλ内的次减算子,当{Aλ}满足本文中定理1的条件时,有 * 成立。（注：*处为公式）
     

模糊粗糙集及其截集

设U为全集 R是U上的一个等价关系,A为U上的模糊集 本文给出了A的λ-截集及强λ-截集的上(下)近似Aλ(Aλ)及Asλ)的若干性质,同时给出了A的上(下)近似与其λ-截λ(As集之间的关系     

q—树的色性

本文证明了由E.G.White head,Jr提出的猜想:一个n阶图G是q——树的充要条件是:P(G,λ)=λ(λ-1)…(λ-q+1)(λ-q)~((?)-q),这里n≥q≥3。     

关于d(y/x)=((λx~n+sum1tona_iy~ix~(n_(-i)))/(-y~n+sum0ton-1b_iy~ix~(n_(-i))))的积分曲线

记所论微分方程为(E_λ)_n,本文给出(E_λ)_n 基本型阵、实际型阵的定义和求法,用实际型阵表达λ遍取不同实数值时,(E_λ)_n积分曲线的定性变化图景.对(E_λ)_1、(E_λ)_2求得全部基本型阵和实际型阵,对(E_λ)_3、(E_λ)_4求得全部基本型阵,阐明可实现性,给出求实际型阵的典型例子.本文原则上适用于 n≥5的情形.     

关于拟常曲率空间中具有常平均曲率超曲面

设(Nn 1,g)是n 1维单连通完备的黎曼流形,其黎曼曲率张量取如下形式KABCD=a(gACgBD-gADgBC) b(gACλBλD gBDλAλC-gADλBλC-gBCλAλD), ∑gABλAλB=1,称Nn 1为拟常曲率空间.本文讨论了这类空间中具有常平均曲率的紧致超曲面,给出了关于其第二基本形式模长平方S的积分不等式.     

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

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