NONLINEAR GENERALIZED HASEMAN BOUNDARY VALUE PROBLEMS FOR FIRST ORDER QUASILINEAR ELLIPTIC SYSTEMS IN THE PLANE

1 Problems and ConditionsA class of the lst order quasilinear elliptic systems in the plane, on the basis of Douglis algebra, can bewritten in the simple form Dw=F(z. w) , here D = / x+ / y+e(a / x+ / y) be the Douglis opearator[1], F be a hypercomplex function.Let be a simple and smooth closed curve in the complex plane C,D~+ be the simple connected domainbounded by and D~-=C- (D~+ ∪ ). Out problem is to find piecewise regular solutions w(z) for Dw=F(z,w) with jump curve in the whole plane that have fixed integer order at infinity and satisfy the condi-tion on ; w~+ (τ) = G_1(τ)w~- (a(τ)) + G_2(τ)w~+ (β(τ)) +g(τ,w+ (τ),w~- (τ)), which be calledthe nonlinear generalized Haseman boundary value problems. By suitable transformations the problem can     

一类带调和势的非线性Schrodinger方程

研究一类带调和势的非线性Schrdinger方程iφt+(1)/(2)△φ-(1)/(2)|x|2φ+a|φ|qφ+b|φ|pφ=0,其中,t≥0,x∈Rn, a,b为常数,p≥q＞1.针对一般情况,运用分类讨论的思想,讨论了该方程具有初值时解的不稳定性质.     

涉及微分多项式的亚纯函数的正规族

设F为区域D上的亚纯函数族,k、m、q是正整数,p(w)=w~q a_(q-1)(z)w~(q-1) … a_1(z)w是多项式,H(f,f,…f~(k))是满足r_H~*>0的微分多项式,a(z)、b(z)、c(z)是D上的解析函数,且a(z)≠b(z),6(z)≠0,c(z)≠0,如果对任意的f∈Ff的零点重数至少为K 1,p(f~(k)) H(ff,…f~(k))=a(z)(?)f(z)=0,p(f~(k)) H(f,f…f~(k))= b(z)(?)f(z)=c(z),则F在D上正规。     

一类阻尼非线性Schrodinger方程组

研究了一类带阻尼非线性Schrodinger方程组的初值问题:iφt=Δφ+(p+1)|φ|p-1|ψ|q+1φ-(ia)/(2)φ,iψt=Δψ+(q+1)|ψ|q-1|φ|p+1ψ-(ia)/(2)ψ,φ(0,x)=φ0(x), ψ(0,x)=ψ0(x), x∈Rn, t∈(0,T).得出该初值问题的解在有限时间内爆破.     

强非线性边值问题

本文建立了非线性椭圆型方程组的下列强非线性边值问题R_e[z~(-n)w]=γ_(21)(z,w) γ_(20)(z) z∈L,(NH)R_e[z~(-n)w_z]=γ_(11)(z,w,w_z) γ_(10)(z),z∈L=■D(NP)的存在唯一性定理,探讨了强非线性与弱非线性的联系与区别,这里的γ_(21)(z,w)或γ_(11)(z,w,w_z)关于w或w与w_z具有指数大于1甚至整函数级坛长的非线性,我们称之为强非线性,而称关于w或w与w_z具有指数为1的坛长的非线性为弱非线性。     

p(t)-Laplace方程组多点边值问题解的存在性

利用Leray-Schauder度方法研究一维p(t)-Laplace方程组多点边值问题解的存在性.当非线性项f(t,u)关于u满足次p-次增长条件时,证明了p(t)-Laplace方程组多点边值问题解的存在性;如果非线性项f(t,u)=σ(t)|u|q(t)-2u ρ(t)并且关于u满足超p 次增长条件时,证明了p(t)-Laplace方程组多点边值问题当|ρ|0 |e|充分小时解的存在性.     

亚纯单叶函数的某些问题

本文得到单叶亚纯函∑(P)类及∑(p,q)类函数的偏差定理及旋转角定理。定义1 设0相似文献   

用Dziok-Srivastava算子定义的一类亚纯多叶函数

近年来, 基于不同的线性算子, 一些p叶解析或亚纯函数类的性质和特征被广泛研究.本文令∑p表示形为f(z)=z-p ∑∞n=1anzn-p且在空心单位圆E0内解析的p叶函数全体组成的类.Dziok-Srivastava算子Hp, q, s(α1): ∑p→∑p定义为Hp, q, s(α1)f(z)=z-p ∑∞n=1((α1)n...(αq)n)/((β1)n...(βs)n)(an)/(n!)zn-p.利用Dziok-Srivastava算子Hp,q,s(α1)定义了∑p的一个子类W p,q,s(α1,α) ,从函数类W p,q,s(α1,α) 的定义导出函数f(z)=z-p ∑∞n=p|an|zn在类W p,q,s(α1,α) 中的充要条件,并利用此结论证明了类中函数的一些线性组合和卷积也在子类W p,q,s(α1,α)中,证明函数F(z)=(λ)/(Zλ p)∫z0tλ p-1f(t)dt(λ＞0;f∈∑p)与函数f(z)具有相同的性质.     

低维空间中吸引玻色-爱因斯坦凝聚的坍塌性质

研究描述吸引玻色-爱因斯坦凝聚的Gross-Pitaevskii(GP)方程,在数学上又称为带调和势的非线性Schrdinger方程iΦt=-(1)/(2)ΔΦ+(1)/(2)|x|2Φ-a|Φ|qΦ-b|Φ|pΦ,这里a,b>0是定参数,1<q<p＜∞.参考Y. Tsutsumi和J. Zhang (Adv Math Sci Appl,1998,8(2)691～713.)的结果,运用能量方法得到了方程在低维空间n=1,2中的坍塌性质.     

超球上关于不变度量的（0，q）-Green式的性质

证明了：对任一（0,q)式g(z)=1/q!g_Aq(z)dz^Aq,其系数gAq-(z)满足:gAq(z)/1-|z|^2在B^n-连续，则有□w∫Bng(z)∧*N(z,w)=g(w)。     

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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