涉及微分多项式的亚纯函数族正规定则

设ψ(z)为区域D内不恒等于零的全纯函数,且只有简单零点,k为正整数,再设F为区域D内的一族亚纯函数,对于F中任意的函数f无零点,且极点均为重级;若对F内任一组函数f与g,f的k阶微分多项式和g的k阶微分多项式在D内分担ψ(z),则F在D内正规.     

亚纯函数的正规族与重值

设F是区域D上的一族亚纯函数,ψ(■0)是区域D上的全纯函数,k为正整数,且对于任意的函数f∈F,都满足条件:f不取零,f(k)+∑k-1于等于(k+2)/k,且中括号内的微分多项式与ψ(z)无公共零点;其中ai(z)与bi(z)是区域D上全纯函数(i=0,1,…,k-1),则F在D内正规.     

亚纯函数的正规族

设为F区域D上亚纯函数簇,k∈Z^＋（k≥2）,m∈Z^＋,a≠0,b为两有穷复数,c（z）≠0为D上解析函数,Vf∈F,f（z）的零点之级≥m,并且f（z）在区域D上的极点总个数（计算重数）至多为m,f（z）=a→f＇（z）=b,f（z）=0→0→f＇（z）=c（z）,f＇（z）=c（z）→｜f^（k）（z）｜≤h,那么F在区域D内正规．     

与分担值相关亚纯函数的正规性

利用Nevanlinna理论研究一类涉及分担函数的亚纯函数族的正规性,得到一个与分担函数相关的正规定则.设k是一个正整数,F是区域D内的亚纯函数族.若对任意的f∈F,其零点重级至少为k,且满足:1)f(z)=0f(k)(z)+∑i=1kbi(z)f(k-i)(z)=a(z);2)f(k)(z)+∑i=1kbi(z)f(k-i)(z)=a(z)■0|f(k+1)(z)+b1(z)f(k)(z)-a′(z)||a(z)|.其中a(z)(a(z)≠0),bi(z)(i=1,2,…,k)是区域D内的全纯函数.则F在区域D内正规.     

一个正规定则的推广

证明了如下结果:设F是区域D内的一族亚纯函数,k≠2是正整数,c,d为两个非零有穷复数.a(z)是一个在D内不取零值的全纯函数.若对每一个f∈F,f的零点重级k,若f(z)=0则f(k)(z)=a(z),f(k)(z)=a(z)则|f(k+1)(z)|h,(h为某一正数),f(z)=c则f′(z)=d,则F在D内正规.     

分担线性多项式的全纯函数的正规族

设F为区域D内的一个全纯函数族，k（≥2）是一正整数，λ和μ是两个非零的常数．若对于任意的f∈F，当f（z）-λz＋μ，z∈D时，有f^（k）（z）=λz＋μ，且f与f＇CM：λz＋μ，则F在D上是正规的．     

涉及齐次微分多项式的整函数族的正规定则

作者证明了以下命题:设F={f}为整函数族,每个函数f∈F,f的零点重数至少为k.又a1(z),a2(z),…,ak(z)为k个整函数.记h(z)=f(k)(z)+a1(z)f(k-1)(z)+…+ak(z)f(z).则若对于区域D内任意点z,有h(z)≠0,|h(z)|<1,且复合函数族{h(f(z))|f(z)∈F}在区域D内正规,则整函数族F在D内正规,并得到涉及齐次微分多项式的整函数族相应的正规定则,推广了已有结果.     

关于全纯函数的正规定则

本文讨论只有重级零点的情况下正规定则的问题.对有关结果作了推广和改进,得到了①f（z）为只有重级零点的整函数,若fk—af2≠0（a≠0）为有穷复数,k为正整数,则f（z）为常数.②设F（z）为区域D内一个全纯函数,K为正整数,ai（z）（i=0,1,…,K—1）,b（z）,a（z）均在D内全纯,a（z）≠0.若对任意f∈F只有重级零点,fk（z）+sum from i=1 to （k-1）(ai（z）+b（z）f（z）-a（z）f2（z）≠a0（z）则F在D内全纯.     

涉及零点与多项式的无零点亚纯函数族的正规性

主要讨论了涉及零点与多项式的无零点亚纯函数族的正规性.主要结果为:设F是区域D内的一族亚纯函数,k,q为正整数,h(z)为区域D内不恒为0的全纯函数.若对任意的f∈F,f(z)≠0,且(f~(k)(z))~q-(h(z))~q至多有q(k+1)-1个不同的零点(不计重数),那么F在D内正规.     

与微分多项式相关的亚纯函数的正规族

设R为区域D上的一族亚纯函数,n,k（n≥k＋1）均为正整数,b为一有限非零复数,a0（z）,a1（z）,……,ak-1（z）为D上的全纯函数,若对R中的任意函数f,f在D内的零点重数至少为n,f的极点重数至少为2,且L∽=b＝〉f=b,其中L∽（z）=f^（k）（z）＋k-1∑i=0ai（z）f^（i）（z）,则R在D内正规．     

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     

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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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has