具有非倍测度的参数型Marcinkiewicz积分算子及交换子的有界性

证明了参数型Marcinkiewicz积分Mρ以及由参数型Marcinkiewicz积分Mρ和RBMO(μ)函数生成的交换子Mρb的有界性.在M的核函数满足较强的Hrmander条件下,不仅证明了Mρ从广义Morrey空间Lp,φ(μ)到广义Morrey空间Lp,φ(μ)有界,而且也证明了Mρb从广义Morrey空间Lp,φ(μ)到广义Morrey空间Lp,φ(μ)有界.     

非双倍测度下参数型Marcinkiewicz积分多线性交换子的有界性

在参数型Marcinkiewicz积分M~ρ的核函数满足较强的H?rmander条件下,利用非双倍测度的特性,证明了参数型Marcinkiewicz积分与Lipschitz函数生成的多线性交换子M_b~ρ(f)在非双倍测度Morrey空间M_q~p(μ)上的有界性,并得到了从非双倍测度Morrey空间分别到Lipschitz空间Lip_(β-n/p)(μ)和RBMO(μ)空间有界的结果.     

非齐型空间中一类满足Hrmander条件的参数型Marcinkiewicz积分交换子的估计

设μ为R~d上的非负Radon测度,满足对固定的C_0>0和n∈(0,d],以及所有的x∈R~d和r>0,μ(B(x,r))≤C_0r~n.本文主要证明了由参数型Marcinkiewicz积分M~ρ和Lipschitz函数b生成的交换子M_b~ρ的有界性.在M的核函数满足较强的Hrmander条件下,作者证明了M_b~ρ不仅从Lebesgue空间L~p(μ)到Lebesgue空间L~q(μ)有界,从Lebesgue空间L~p(μ)到Lipschitz空间Lip_(β-n/p)(μ)有界,且从Lipschitz空间Lip_(β-n/p)(μ)到空间RBMO(μ)有界.     

Calderón-Zygmund算子与交换子在非齐度量测度空间上Morrey空间中的有界性

用函数分解及几何双倍条件和上双倍条件方法,得到了Calderón-Zygmund算子及其与RBMO(μ)函数生成的交换子在非齐度量测度空间上Morrey空间中的有界性;并且当p=n/β时,证明了Calderón-Zygmund算子与Lipschitz函数生成的交换子是从Morrey空间到RBMO空间有界的.     

参数型Marcinkiewicz交换子在非齐性度量测度Hardy空间上的估计

设(X,d,μ)是一个满足上双倍和几何双倍条件的非齐度量测度空间,在核函数满足一定的条件下,证明了参数型Marcinkiewicz积分Ms(μ)与Lipβ(μ)函数b生成的交换子Msb(μ)不仅是从Hardy空间H1(μ)到Lebesgue空间L11-β(μ)上的有界算子,而且是从Lebesgue空间Lβ(μ)到RBMO(μ)空间的有界算子.     

Calderón-Zygmund算子与交换子在非齐度量测度空间上Morrey空间

用函数分解及几何双倍条件和上双倍条件方法, 得到了Calderón-Zygmund算子及其与RBMO(μ)函数生成的交换子在非齐度量测度空间上Morrey空间中的有界性; 并且当p=n/β时, 证明了Calderón-Zygmund算子与Lipschitz函数生成的交换子是从Morrey空间到RBMO空间有界的.     

参数型Marcinkiewicz积分交换子在非齐性Morrey空间上的有界性

设(X,d,μ)是Hyt?nen意义下的度量测度空间,且满足所谓的几何双倍和上部双倍条件,在假设核函数满足一定的H?rmander条件下,证明了由参数型Marcinkiewicz积分与RBMO函数生成的交换子是从Morrey空间到Morrey空间有界的。     

非二倍测度条件下分数次积分的交换子

在非二倍测度条件下引入分数次积分算子Ia,并讨论Ia与有界平均振动函数b∈RBMO构成的交换子[b,Ia]是从Lp(μ)到Lp(μ)的有界算子.     

分数型Marcinkiewicz算子在加权Morrey空间的有界性

设μ_Ω,α为分数型Marcinkiewicz算子,[b,μ_Ω,α]是由μ_Ω,α和有界平均振动(BMO)函数b(x)生成的交换子。利用Sharp极大函数估计以及空间分解理论,证明了μ_Ω,α和[b,μ_Ω,α]在加权Morrey空间上的有界性质。此外,考虑了μ_Ω,α在加权Morrey空间上的弱型估计。     

交换子在非齐型空间上的Morrey空间中的有界性

证明了由Calderón-Zygmund算子或分数次积分算子与RBMO(μ)函数以及Lipschitz函数生成的交换子在非齐型空间上的Morrey空间中的有界性.     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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