Hardy空间Hp(BN)上的加权复合算子

设φ:BN→BN为全纯映射,ψ∈H(BN), 其中H(BN)表示BN上全纯函数集合.定义加权复合算子Wφ,ψf=ψ(fφ),f∈H(BN).作者研究了Hardy空间Hp(BN)上的加权复合算子的有界性、紧性、弱紧性.     

正规族与正规函数的一个注记

设F为单位圆盘△上的一族全纯函数,a和b为2个有限的复数且有b≠a,如果对任意的z∈△且对每个f∈F,若f=α→f′=α,且f=b≥→f′=b,则存在一正整数M且对任意的f∈F,有（1-｜z｜^2）f^#（z）=（1-｜z｜^2）｜f′（z）｜/1＋｜f（z）｜^2≤M.     

Bers型空间之间的加权微分复合算子

给定复平面中单位圆盘D上的全纯自映射,设u∈H(D),定义H(D)上的加权微分复合算子,Dnφu为(Dnφuf)(z)=u(z).f(n)(φ(z)),f∈H(D),z∈D.利用泛函分析和复分析的方法,讨论了Bers型空间(或小Bers型空间)之间加权微分复合算子,Dnφu的有界性和紧性,得到了若干充要条件.     

Hardy空间H~1(B_N)上的加权复合算子

设(?):B_N→B_N,全纯映射,Ψ∈H(B_N),其中H(B_N)表示B_N上全纯函数集合,定义加权复合算子W_((?),Ψ)f=Ψ(f(?)),f∈H(B_N)。文章研究了Hardy空间H~1(B_N)上的加权复合算子的紧性与弱紧性等价关系。     

狄里可雷空间的循环性

考虑加权狄利克雷空间上循环性问题,用∏表示复平面上的单位圆盘,H2表示二阶Hardy空αnu2,∑∞(n 1)δ｜αn｜2<∞,0<δ<1,δ=1时,D1是典型的狄间,Dδ=∈H2:(u)=∑∞n=0n=0利克雷空间,δ=0时,D1空间与Hardy空间H2重合。文中推广了加权狄利克雷空间循环性的一些结果。证明了这些空间上的有关循环性的两个比较定理。     

一种临界增长p-Laplace方程的非平凡解

给出了一种RN中有界区域Ω上p-Laplace方程:- ·(c(x)｜ u｜p-2 u)=a(x)｜u｜q-2u+b(x)｜u｜α-2u+f(x,u)(q=Np/(N-p),N>p>α>1)在一定的条件下非平凡广义解存在性的结果.     

单位球上的可逆加权复合算子

将一个全纯函数f 映射成ψ*f。φ的算子Cψ,φ,我们称它为加权复合算子,其中φ是一个全纯映射,ψ是一个全纯函数.n维复空间的单位球上的Hardy-Hilbert 空间H2（Bn)以及加权Bergman空间A2α(Bn)上的加权复合算子的可逆的充分必要条件为ψ以及1/ψ均本性有界且φ为球全纯自同构.此外,还计算φ是椭圆自同构且不动点导数特征值为有理变换情况下加权复合算子的谱.     

对称算子空间上Jordan-triple初等映射的可加性

目的 主要刻画对称算子空间上的2个映射M:J(H)→K(H)和M*:K(H)→J(H)是可加的,其中J(H)和K(H)分别表示H上的J-对称算子全体和K-对称算子全体.方法 利用M和M*的性质以及对称算子分块的性质进行证明.结果 与结论证明了若映射M:J(H)→K(H)和M*:K(H)→ J(H)满足{M(AM*(B)C+CM*(B)A)=M(A)BM(C)+M(C)BM(A),M*(BM(A)D+DM(A)B)=M*(B)AM*(D)+M*(D)AM*(B)且M和M*是满射,则M和M*是可加的.     

涉及微分多项式和多项式的亚纯函数正规族

k,l∈N,且k≥2,设F为D内亚纯函数族,对f∈F,在D内的零点之级≥k 1,极点之级≥2.h(z)为D内的全纯函数,在D内的零点之级≥2,且h(z)0.设a1(z),a2(z),...,ak-1(z)和b1(z),b2(z),...,bl(z)为D内的全纯函数.置H(f)(z)=f(k)(z) ak-1(z)f(k-1)(z) ... a1(z)f ′(z) b1(z)f(z) ... bl(z)f l(z).若对f∈F,有H(f)(z)≠h(z)(z∈D)成立,则F在D内正规.     

确定双曲型方程未知系数的反问题

本文在有界区域上讨论了一雏线性双曲型方程的初边值问题. {p(x)ux)x q(x)u(x,t) r(x)s(t), (x,t) ∈Ωu(x,0) =f1(x), u1(x,0) =f2(x), 0≤ x ≤ lαtu(0,t) β1ux(0,t)= g1 (t), α2u(l,t) β2ux(l,t)= g2(t), 0≤ x ≤ T 其中αi2 βi2≠0,i=1,2,由给定的平行附加条件u(x,t)=f3(x),确定未知函数r(x)的反问题,得到了反问题解的存在性和唯一性.     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-