关于一类二维奇异积分方程的唯一解

设Ｄ是一个边界Г∈Ｃ＾１ａ（０〈ａ≤１）的有界单连域,复函数ｑ（ｚ）∈Ｃ＾１ａ（Ｄ）,│ｑ（ｚ）│≤１,等积只能在Г上成立,且在Г上等式ｑ（ｚ（ｔ）ｚ’（ｔ）＋１│ｚ∈Г＝０最多在有限个点上成立,本文给出以满足上述条件的复伸张ｑ１（ｚ）及（ｑ２（ｚ）∈Ｃ＾１ａ（Ｄ）为系数的二维奇异积分方程ｗ（ｚ）＋ｑ１（ｚ）／ｎ√√ｗ（ｔ）／（ｘ－ｚ）＾２ｄσ＋ｑ２（ｚ）／ｎ√√ｗ（ｔ）ｄσｚ／ｔ－ｚ＝ｆ（ｚ）的     

按严格递归法则生成的多重分形及其谱维数方程

本文在给出了广义Ｈａｕｓｄｏｒｆｆ维数定义的基础上得到了按严格递归法则生成的多重分形的谱维数Ｄｑ＝Ｄ（ｑ）的一般函数关系式─谱维数方程．作为谱维数方程的应用，得到了一维Ｃａｎｔｏｒ集的Ｄｑ谱和ｆ（ａ）谱的解析表达式     

关于不完整三角和的估计

本文改进了华罗庚关于不完整三角和的著名结果，我们主要证明了：│Σ＾ｍｘ＝１ｅｑ（ｆ（ｘ））－ｍ／ｑＳ（ｑ，ｆ（ｘ））│〈４／ｘ＾２（ｌｏｇｑ＋γπ＋３／４－ｌｏｇπ／２）ｅ＾２ｋｑ＾１－１／ｋ＋２／π（２－１／π）ｅ＾２ｋｑ＾－１／ｋ。其中ｆ（ｘ）＝ａｋｘ＾ｋ…＋ａ１ｘ＋ａ０为一整系数多项式，且（ａ１，ａ２……＋ａｋ，ｑ）＝１，γ为Ｅｅｎｌｅｒ常数，ｑ≥２整数。     

热混合层中温度脉动的多重分形特性

运用广义计盒维数方法,对测量热混合层所得到的温度脉动时间序列信号进行了详细研究,发现等温截面的时间点集在一定尺度范围内表现出多重分形几何特性,并计算了截面阀值的绝对值范围为０～１．５ 时的等温截面的多重分形的广义计盒维数Ｄｑ,当ｑ ３,Ｄｑ 随截面阀值Ｈ以及测量点位置Ｙ的变化不大,热混合层温度脉动时间序列具有统一的多重分形维数;但当ｑ ＞ ３,Ｄｑ 受湍流流场本身的影响很大．     

几何Rademacher级数的图的Hausdorff维数

本证明了对任意α∈（０，１），几何Ｒａｄｅｍａｃｈｅｒ级数ｆａ（ｘ）＝Σ＾∞ｉ＝１２＾－ａｉＲ（２＾ｉ－１ｘ）（ｘ∈［０，１］）的图的Ｈａｕｓｄｏｒｆｆ维数为２－ａ。     

用Bochner—Riesz平均逼近及Hardy求和

设Ｆ∈Ｃ（Ｑｎ），Ｎ∈Ｎ且ＳＲ×（ｎ－１）／２（ｆ）是ｆ的临界阶Ｂｏｃｈｎｅｒ－Ｒｉｅｓｚ平均，求得了（Ｈ，ｑ）逼近的阶的估计：｜｜１／Ｒ∫０＾Ｒ｜ｆ－Ｓｒ＾（ｎ－１）２（ｆ）｜＾ｑｄｒ∞≤ｃ１／Ｒ∫｜ｗ２（ｆ；１／ｒ）｜＾ｑｄｒ Ｒ＞０，其中ｗ２表示二阶连续模，ｑ＞０且Ｃ是常数，同时研究了这类逼近的饱和问题。     

用球面Jackson多项式刻划Besov空间

记Ｓｎ－ １ 为ｎ（ｎ ≥３） 维欧氏空间Ｒｎ 中的ｎ － １ 维单位球面,Ｘｐ （Ｓｎ－ １） 为Ｓｎ－ １ 上的ｐ（１ ≤ｐ ≤∞） 幂可积函数空间,或连续函数空间,并记Δ＝ ｛ｇ（ｘ）｜ｇ,Δｇ ∈Ｘｐ （Ｓｎ－ １）｝,Δｆ ＝ ｎｉ＝ １２ｇ（ｘ）ｘｉ２ ｜｜ｘ｜＝ １,ｇ（ｘ） ＝ ｆ（ ｘ｜ｘ｜）．作Ｋ 泛函Ｋ（ｆ,δ）ｐ ＝ ｉｎｆｇ∈Δ｛‖ｆ － ｇ‖ｐ ＋ δ‖ｇ‖Δ｝以及Ｂｅｓｏｖ 空间（Ｘｐ ,Δ）θ,ｑ（０ ＜ θ＜ ２,１ ≤ｑ ≤∞）,则有下面的（ｉ）,（ｉｉ） 为等价的：（ｉ）　ｆ ∈（Ｘｐ ,Δ）θ,ｑ;　（ｉｉ）　［∞ｖ＝ １（ｖθ‖Ｊｖ,ｓ（ｆ） － ｆ‖ｐ）ｑ １ｎ ］１ｑ ＜ ＋ ∞当ｑ＝ ∞时,ｆ ∈（Ｘｐ ,Δ）θ,∞‖Ｊｖ,ｓ（ｆ）－ ｆ‖ｐ ＝ Ｏ（ｖ－ θ）,其中Ｊｖ,ｓ（ｆ）为球面Ｊａｃｋｓｏｎ 平均。     

论Opial—Beesack不等式

设ｆ（ｘ）∈ＡＣ［０，Ｈ］，产Ｆ（０）＝ｆ（ｈ）＝０，则有∫＾ｈ０｜ｆｆ＇｜ｄｘ≤１／２（ｈ／２）＾２／Ｑ（∫＾ｈ０｜ｆ＇｜＾ｐｄｘ）＾２／ｐ－２／ｑ｛｜ｆ＇｜＾ｐｄｘ）＾２－１／４（∫＾ｈ０｜ｆ；｜＾ｐｃｏｓ（２πｘ／ｈ）ｄｘ）＾２｝＾４／ｑ其中１＜ｐ≤２，Ｑ＝Ｐ／（Ｐ－１）．（２）显著比（１）优秀，实际上我国已证得更一般的结果。     

一类康拓型函数不可微点集的豪斯道夫维数

讨论了齐次康拓集Ｃ（「０，１」，｛２｝，｛ａ＾１＋ａｋ｝和偏齐次康拓集Ｃ＾＊（「０，１」，｛２｝，｛ａ＾１＋ａｋ｝）上的康拓型函数，在条件ａｋ≥０和ｎ／∑／ｋ＝１ａｋ＝０（ｎ）下，并给出了其不可微点集的豪斯道夫维数及填充维数。     

分数次积分算子的交换子的H1有界性

用小波分析的方法,证明了分数次积分算子的交换子的Ｈ＾１有界性,即｜｜ｆＩ＾ａ（ｇ）－ｇＩ＾ａ（ｆ）｜｜Ｈ＾１≤Ｃ｜｜ｆ｜｜ｐ｜｜ｇ｜｜ｑ,其中,１〈ｐ,ｐ〈∞,１／ｐ＋１／ｑ＝１＋ａ,０〈ａ〈１。     

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.     

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