与分担值有关的正规定则

设F为单位圆盘上的一族亚纯函数,a非零有穷复数,k为任一正整数,若对每一f∈F,f零点的重数≥k 1(k≥2),极点重数≥2,′f和f(k)IM分担值a,则F在单位圆盘上正规。     

整函数与其K阶导数分担两个小函数

本研究了整函数f与其k阶导数f^（k)IM分担两个小函数的问题，证明了若非常数整函数f与其k阶导数，f^（k)IM分担两个不同小函数a和b，且f的零点重数大于等于k 1，则f=f^(k)。     

导数截断分担公共值的亚纯函数

主要研究亚纯函数的导数分担公共值的情形,对于两个亚纯函数的k阶导数在涉及截断分担一个公共值的情况进行了详细讨论。证明过程中通过对函数重级零点、极点的分类讨论并进行了详细计算,得到一个亚纯函数唯一性问题的结果。     

分担值与亚纯函数的正规性

把亚纯函数的分担值和推广了的球面导数相结合,得到了如下结果:设F是区域D内的亚纯函数族,若F中的任意函数,(∈F)的零点重数至少是k(k是正整数),f=0当且仅当f(k)=0,且当z∈E(1,f(k))时,存在正整数M(<1),使得|f(k)(z)|/1+|f(z)|k+1≤M 则F在D内正规.     

亚纯函数族与分担值相关的正规定则

研究了与分担值相关的亚纯函数正规族,设F是在区域D上的亚纯函数族,a是一个非零有限复数,对每一f∈F,f的极点重数至少为k,且满足Ef′(a)=Ef(a)和当f(z)=a时,有f(k)(z)=f(k+1)(z)=a,其中Ef(a)={z∈D:f(z)=a},则F在D上正规。     

具有权弱分担值的差分或微分多项式的亚纯函数的唯一性

利用权弱分担的定义以及唯一性理论方法讨论亚纯函数的k阶导数与差分或微分多项式的k阶导数分担值的问题.分析结果表明,当分担"(1,m)"且Θ(∞,f)介于一定范围的情况下,两个函数的k阶导数相等,其中对应不同的m值,n,m需满足不同的不等式.     

与不动点和多项式有关的亚纯函数导数的零点

主要研究了亚纯函数的K阶导数的不动点和小函数问题.证明了如果f(z)是个超越的亚纯函数,k是个正整数且f(z)的零点至少是k+1重,极点至少为2重, 那么f^(k)(z)有无穷多个不动点.     

正规族与高阶导数分担值

设f(z))和g(z)在复平面的一个区域G内亚纯，α∈C^-＝CU|∞|，若f(z)-α和g(z)-α在G内具有相同的零点，则α称为函数f（z)和g(z)在G内的分担值，当零点计重数或不计重数时，则α分别称为函数f(z)和g(z)在G内的CM分担值或IM分担值。研究在函数与其高阶导数具有分担值的条件下函数族的正规性定则，证明了一个区域G上的全纯函数族F是正规的，如果两个不同的有穷复数为族F中每个函数及其k阶导数在G中的CM分担值，且族F中每个函数的零点重级≥k(k为自然数)。例子表明本定理中对函数零点重级的限制至少在k＝2时是精确的。     

亚纯函数的不动点及其唯一性的推广

研究了亚纯函数的唯一性和分担不动点,改进了XUJF等的结果,得到主要的结果：设n,k,m,和l是4个正整数,f（z）和g（z）是两个非常数整函数或两个分别有m和l个极点的亚纯函数（忽略重数）．如果n〉max{3k＋12,k＋m＋f＋3},（f^n）^（k）和（g^n）^（k）CM分担z,（f＇）（k）和（g^n）^（k...     

导数分担四个公共值的亚纯函数

讨论两个亚纯函数的k阶导数分担四个公共值时的惟一性问题,得到两个亚纯函数的k阶导数之间的相关表达式。     

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~~