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1.
次线性算子与幂权的Soria-Weiss定理的拓广   总被引:1,自引:1,他引:0  
将次线性算子关于测度|X|-adx的(p,p)型的Soria-Weiss定理拓广到非光滑核算子的情形中去,而且关于a的范围是准确的。  相似文献   

2.
综合介绍了近几年在研究算子加权模不等式领域中所出现的一个新课题,即对一类广泛的次线性算子,提出一种统一的方法,在幂权情形下来建立算子的加权模不等式。  相似文献   

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一类有关圆盘乘子算子的加权不等式   总被引:5,自引:2,他引:3  
对一类有关圆盘乘子的算子,建立了幂权加权不等式,作为上述结果的一个应用,给出了Stein-Weiss的一结果的简单证明。  相似文献   

5.
次线性算子与幂权的Soria—Weiss定理的拓广   总被引:1,自引:1,他引:0  
将次线性算子关于测度1X1^-αdx的(p,p)型的Soria-Weiss定理拓广到非光滑核算子的情形中去,而且关于α的范围是准确的。  相似文献   

6.
一类卷积型方程   总被引:1,自引:1,他引:1       下载免费PDF全文
利用高阶奇异积分的Fourier变换和高阶奇异积分方程研究一类带幂权核的卷积型方程,讨论了它的可解性条件、解的数目及解法。  相似文献   

7.
得到局部紧Vilenkin群上一类加幂权的Herz空间中次线性算子的有界性定理,对未加权情形亦得到有界性判定条件。  相似文献   

8.
局部紧Vilenkin群上加幂权的Hardy-Littlewood-Sobolev不等式   总被引:1,自引:0,他引:1  
建立了局部紧Vilenkin群上加幂权的Hardy-Littlewood-Sobolev定理,在此基础上得到了分数次积分算子在局部紧Vilenkin群上加幂权Herz型空间中若干有界性定理.  相似文献   

9.
郑晖 《科技资讯》2010,(34):184-184
教育的理想是为了一切的人,无论是城市的还是乡村的,富贵的还是贫贱的,聪慧的还是笨拙的,教育的理想是为了人的一切,无论是品德的还是人格的,生理的还是心理的,智力的还是情感的。——摘自:朱永新《教育的理想与理想的教育》。  相似文献   

10.
基于布尔格的次直积同构表示,引入布尔格的元的不可辨下标集的定义,给出布尔格的元的不可辨下标集的简单性质.应用布尔格的元的不可辨下标集给出布尔格的主同余的刻画,并给出有穷布尔格的主同余的基数与布尔格的元的不可辨下标集的基数的联系,从而得到布尔格的主同余的构造方法.  相似文献   

11.
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.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

13.
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。  相似文献   

14.
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.  相似文献   

15.
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-  相似文献   

16.
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-  相似文献   

17.
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  相似文献   

18.
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  相似文献   

19.
<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  相似文献   

20.
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