关于ErdOs的一个同余问题

用初等的方法讨论了数学家ErdOs提出的一个关于连续数乘积的同余问题,得到了使同余式(2)成立的最小素数p3=17,p4=23,而且证明了使两个、三个同余乘积式成立的素数的一些结论.     

关于Erds的一个同余问题

用初等的方法讨论了数学家Erd s提出的一个关于连续数乘积的同余问题 ,得到了使同余式(2 )成立的最小素数 p3 =17,p4 =2 3,而且证明了使两个、三个同余乘积式成立的素数的一些结论     

关于ErdOes的一个同余问题

用初等的方法讨论了数学家ErdOes提出的一个关于连续数乘积的同余问题，得到了使同余式（2）成立的最小素数p3=17,p4=23，而且证明了使两个、三个同余乘积式成立的素数的一些结论。     

某些二元二次同余方程的解数

设p为素数,特别是当p为奇素数时,通过二元二次同余方程的等价变换,对模p的二元二次同余方程进行了等价分类,给出了各类二元二次同余方程的解数。     

Prodinger问题与正则语言的Schreier方法

本文推广右同余引进了p.p(几乎处处)右同余的概念,利用[5]中建立的形式语言的Schreier方法,得到了正则语言的若干特性,其中,解决了Prodinger在[3]中提出的问题。     

BE-代数的犹豫模糊滤子和犹豫模糊同余关系

运用犹豫模糊集的方法和原理研究BE-代数的滤子和同余关系问题.首先,引入了BE-代数的犹豫模糊滤子概念,获得了犹豫模糊滤子的若干性质和等价刻画.其次,引入了BE-代数的犹豫模糊同余关系概念,讨论了犹豫模糊同余关系的性质及其与犹豫模糊滤子概念之间的关系,给出了BE-代数在给定犹豫模糊同余关系下的商代数特征并建立了同态基本定理.     

关于组合数的同余

在整数同余基本理论的基础上，研究了组合数的同余，得到了组合数同余的六个计算公式     

关于组合数的同余

在整数同余基本理论的基础上，研究了组合数的同余，得到了组合数同余的六个计算公式。     

伪补MS-代数的同余关系

研究了伪补MS代数的素理想与同余关系之间的联系,证明了伪补MS代数的同余格与它的MS代数的同余格是相同的。     

P—正则半群的强P—同余格

证明映射ctr:ρ|→ctrρ为格∧p（S）到格∑（P）上的完全格同态，且由ctr诱导的∧p(S)上的同余θ的每一个同余类为∧p(S)的完全模子格。给出同余θ的若干等价刻划。     

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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