具有一个分担集合的整函数的唯一性

研究了当n＞2k+m*时,满足E(S,[fn(μfm+λ)](k))=E(S,[gn(μgm+λ)](k))的整函数f与g的唯一性理论,其中S={1,ω,…,ωl-1},l≥4.     

分担一个多项式的全纯函数的唯一性(英文)

本文主要研究了全纯函数分担一个非零多项式的唯一性问题,并且得到了:若f,g为2个非常数的超越整函数,n,k,l为3个正整数且满足5l>4n+5k+7.如果[L(f)](k)与[L(g)](k)IM分担次数小于或等于5的非零多项式P(z),则或者f(z)=λ1eλQ(z)+c,g(z)=λ2e-λQ(z)+c,或者f(z)与g(z)满足代数方程R(f,g)≡0,这里Q(z)=∫z0p(z)dz,λ1,λ2,λ及c为4个常数,且满足等式(λ1λ2)n(nλ)2=-1,并且R(ω1,ω2)=L(ω1)-L(ω2).此外,就[L(f)](k)与[L(g)](k)IM或CM分担不动点的情形也进行了详细的研究。     

分担一个多项式的全纯函数的唯一性

本文主要研究了全纯函数分担一个非零多项式的唯一性问题,并且得到了:若f,g为2个非常数的超越整函数,n,k,l为3个正整数且满足5l＞4n+5k+7.如果[L(f)](k)与[L(g)](k)IM分担次数小于或等于5的非零多项式P(z),则或者f(z)=λ1eλQ(z)+c,g(z) =λ2e-λQ+(z),或者f(z)与g(z)满足代数方程R(f,g)≡0,这里Q(z)=fz0P(z)dz,λ1,λ2,λ及c为4个常数,且满足等式(λ1λ2)n(nλ)2 =-1,并且R(ω1,w2)=L(ω1)-L(w2).此外,就[L(f)](k)与[L(g)](k)IM或CM分担不动点的情形也进行了详细的研究.     

关于微分-差分多项式的零点和唯一性

利用Nevanlinna值分布理论,研究零级超越整函数的微分-差分多项式[f(qz+c)n∏mj=1 f(j)(z)](k)关于小函数α(z)的零点分布,其中n、j、m、k都是正整数且n≥m(m+5)/2+k+2;此外,得到了2个零级超越整函数的微分-差分多项式[f(qz+c)n∏m j=1 f(j)(z)](k)与[...     

分担一个多项式的全纯函数的唯一性

本文主要研究了全纯函数分担一个非零多项式的唯一性问题，并且得到了：若f,g为2个非常数的超越整函数，n,k,l为3个正整数且满足5l>4n+5k+7.如果［L(f)］(k)与［L(g)］(k)IM分担次数小于或等于5的非零多项式P(z)，则或者f(z)=λ1eλQ(z)+c,g(z)=λ2e－λQ(z)+c, 或者f(z)与g(z)满足代数方程R(f,g)≡0，这里Q(z)=∫z0p(z)dz,λ1,λ2,λ及c为4个常数, 且满足等式(λ1λ2)n(nλ)2=－1,并且R(ω1,ω2)=L(ω1)－L(ω2).此外，就［L(f)］(k)与［L(g)］(k)IM或CM分担不动点的情形也进行了详细的研究。
     

高维Neuberg-Pedoe不等式的再推广

用初等简洁的方法证明了一个比已有结果更加广泛的分析不等式：设k，n∈N，μ>0，xi>0，i=1，…，n，且∑^i=1^nxi=λ，则当k≤n-μ+1时有，Ek(λ/x1-μ，…，λ/xn-μ)≥(k^n)(n-μ)^k，等号成立当且仅当x1=…=xn=λ/n．     

一类Hilbert型奇异积分算子的范数及其应用

设ω=x(p-1)(λ-1)+(a-b)p,ω1=x1-λ+(a-b)p,定义Hilbert型奇异积分算子Tλ:(Tf)(y)=∫0+∞max{f(xxλ),yλ}dx y∈(0,+∞)证明了Tλ是Lωp1(0,+∞)到Lωp(0,+∞)的有界线性算子,并得到了Tλ的范数表达式.     

二阶常系数非齐次线性微分方程的解法

在求解形如y″+py′+qg=f(x).的二阶常系数非齐次线性微分方程的特解时,对于f(x)=P_m(x)e~(λx)(cosωx+sinωx)型及f(x)=P_m(x)e~(λx)。型一般设方程对两种不同类型的f(x)的特解y~*分别为y~*=x~kQ_m(x)e~(λx)(cosωx+sinωx)(1)y~*=x~kQ_m(x)e~(λx)(2)对两种不同类型的f(x),设两种不同形式的特解时,当P_m(x)为高次多项式时,(1)式较(2)式结构复杂,用待定系数法确定Q_m(x)时的计算繁度大。     

Jacobi矩阵的逆特征值问题

已知两个实数列{λ_i}_1~n和{μ_i}_1~(n-1),满足条件λ_i<μ_i<λ_(i+1)(i=1,2,…,n-1),求一个n阶Jacobi矩阵J,使得J具有特征值{λ_i}_1~n,而J_(-k)具有特征值{μ_i}_1~(n-1),其中J_(-k)表示划去J的第k行和第k列后所得的矩阵,1相似文献   

含Caputo分数阶导数的分数阶微分方程

求解了含Caputo分数阶导数的分数阶微分方程初值问题 d~αu/dtα+ω~αu(t;α)=h(t),t>0,0≤n-1<α≤n,ω>0, u~(k)(0~+;α)=u_k,k=0,1,…,n-1.利用Laplace变换方法和广义 Mittag-Leffler函数,得到其解为u(t;α)=integral from n=0 to t (r~(α-1)E_α,α(-(ωτ)~α))h(t-τ)dτ+sum from k=0 to n-1 u_kt~kE_(α,1+k)(-(ωt)~α)。     

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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