几个涉及一阶导函数的(α,m)-凸函数的积分不等式

建立与(α,m)-凸函数的Hermite-Hadamard型不等式有关的并且涉及一阶导函数的积分恒等式.利用这个恒等式,在一阶导函数的绝对值是(α,m)-凸函数和一阶导函数的绝对值有界两种情况下,建立了一些积分不等式.     

Newton-Steffensen型迭代方法在一阶H(o)lder连续条件下的局部收敛性

研究了一牛顿型迭代方法,即Newton-Steffensen型迭代方法的局部收敛性质.在假设非线性算子f的Fréchet导数在f(x)的零点x*的某个邻域满足一阶H(o)lder连续条件下,确立了该迭代方法在Banach空间里的局部收敛定理,并给出了其局部收敛阶是1+p阶.     

特征数p的Cartan型阶化李代数的上同调群

A. S. Dzhumadil'daev给出了Zassenhaus代数W(1,n)的上同调群H~1(W(1,n),U_t)的结构.在本文中我们研究了在特征数p>2或3的代数闭域F上的Cartan型阶化李代数的上同调群的性质.设??是一个Cartan型阶化李代数.对于每个不可约L_([0])-模V_0,我们都能构造一个阶化L-模?,所有的不可约阶化L-模都能从?导出.我们在本文中决定了H~1(L,?)的结构,其中L=W(2,m),W(3,m)或H(2,m),我们也决定了H_*~1(L,V)的结构,其中L=W(2,(1,1)),W(3,(1,1,1))或H(2,(1,1))而V是一个不可约限制L-模.于是,我们把秩2的Cartan型阶化李代数的上述的上同调群     

含零阶齐次核的Hilbert型奇异重积分算子的有界性及范数

利用实分析的方法与技巧,研究了具有零阶齐次核的Hilbert型奇异重积分算子的(p,p)有界性及(p,p)型范数,得到了若干结论.     

4p2阶群的g函数值

对任一有限群G和任一正整数d,令G(d)={x∈G|xd=1|}。若G1与G2为有限群,满足|G1(d)|=|G2(d)|,d=1,2,…,则称G1与G2为同阶型群。文中讨论了与Thompson猜想相关的同阶型群的问题,两个有限群阶型相同是否同构的问题,并且对有限群G,定义了G的g函数值g(G),表示与群G的阶型相同的有限群的同构类类数。本文利用4p2阶群的结构完全分类,通过计算得出所有4p2阶群的阶型,对任一4p2阶群M,得出了M的g函数值。特别地,在4p2阶群中找到了一对群,它们的g函数值为2,即阶为4p2的群中存在一对不同构的群,它们阶型相同.这里p为奇素数。     

特征数p的Cartan型阶化李代数的上同调群

A.S.Dzhumadil'daev给出了Zassenhaus代数W(1,n)的上同调群H~1(W(1,n),U_t)的结构。在本文中我们研究了在特征数p>2或3的代数闭域F上的Cartan型阶化李代数的上同调群的性质。设L=(?)L_[(?)]是一个Cartan型阶化李代数。对于每个不可     

虚源法研究马丢-高斯光束的传输

马丢-高斯光束是近年来被提出的一种准无衍射光束,它包括:第一类(2m+2阶)、第二类(2m+1阶)奇型马丢-高斯光束;第一类(2m阶)、第二类(2m+1阶)偶型马丢-高斯光束.马丢-高斯光束最大的特点是光学形态的多样性.因此,研究马丢-高斯光束的传输特性,使之用于实际有非常重要的意义.利用光束的可叠加原理,以第一类奇型马丢-高斯光束为例,通过定义一组虚光源,计算出了第一类奇型马丢-高斯光束在自由空间传输的积分表达式.利用类似的处理方法,还得到了另外3类马丢-高斯光束的表达式.这一组表达式为精确、定量地计算各类马丢-高斯光束的传输特性提供了方便.     

Bn(3)型单群的谱刻画

群的全部元素的阶的集合称之为谱.利用素图的连接标准,对非连通的Bn(3)型单群进行了谱刻画,证明了任意与Bn(3)具有相同谱的有限群必然和Bn(3)同构(其中n>3),进一步验证了A.S.Kondratiev猜想.     

环上(p,q)型Lorentz李代数的killing型与理想

设R是有1的交换环,2是R的单位,给出了R上(p,q)型Lorentz李代数so(R)的killing型简洁计算公式,证明了其killing型是非退化的.刻画了so(R)的阶理想,进而证明so(R)的所有理想都是标准的.     

一类脉冲中立型差分方程振动性的比较结果

考虑具有连续变量一阶脉冲中立型差分方程﹛Δx(t)-p(t)x(t-τ)+m∑i=1q_i(t)f_i(x(t-σ_i))=0,t≠t_k,x(t_k~+)-x(t_k)=I(x(t_k)),k=1,2,…,建立了方程与某一阶时滞微分方程振动性之间的比较结果.     

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

正~~     

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