关于山路定理的应用的一个注记

研究了Ｄｉｒｉｃｈｌｅｔ问题－Δｕ（ｘ）＝ｆ（ｘ,ｕ）,ｘ∈Ω,ｕ∈Ｈ１０（Ω）,其中Ω是ＲＮ（Ｎ≥１）中的有界光滑区域．在一定条件下,得到了下列结论：（ｉ）当λ１＜ｌ＜＋∞且ｌ≠λｊ,ｊ≥２时,该问题存在正解;（ｉ）当ｌ＝λｊ,ｊ≥１,且ｌｉｍｔ→∞［ｆ（ｘ,ｔ）ｔ－２Ｆ（ｘ,ｔ）］＝＋∞时,存在非退化解;（ｉｉ）当ｌ＜λ１时,没有正解．     

抛物型方程解的局部有界性的一个证明

在１＜ｐ＜２ｎｎ＋２的情形，对下面的抛物型方程，证明解的整体有界性和局部有界性要求不同的条件．在增加ｕ∈Ｌτ（Ｑ），ｌ＞ｎ（２－ｐ）ｐ的假定下，本文给出解的局部有界性的一个证明     

连续参数集值下鞅的收敛定理

首先给出了连续参数集值下鞅的定义．继而证明了连续参数集值下鞅的三个等价定理：（ａ）Ｌ１ｗｋｃ（Ｘ）值下鞅等价于任给τ１＜τ２,τ１,τ２∈Ｔ,∫ΩＦτ１ｄＰ∫ΩＦτ２ｄＰ;（ｂ）Ｌ１ｆｃ（Ｘ）值下鞅等价于任给ｓ,ｔ∈Ｒ＋,ｓ＜ｔ,Ｓ１Ｆｓ（Ｆｓ）ｃｌ｛Ｅ（ｇ｜Ｆｓ）,ｇ∈Ｓ１Ｆｔ（Ｆｔ）｝;（ｃ）Ｘ可分时,闭凸集值下鞅等价于任给ｓ,ｔ∈Ｒ＋,ｓ＜ｔ,Ａ∈Ｆｓ,ｃｌ∫ＡＦｓｄＰｃｌ∫ＡＦｔｄＰ．最后给出了弱紧凸集值随机集族的弱收敛定理和Ｘ有ＲＮＰ,Ｘ可分时闭凸集值右连续下鞅的弱收敛定理．     

复平面上广义Lagrange插值多项式的平均逼近阶

研究了复平面单位根上广义Ｌａｇｒａｎｇｅ插值多项式的收敛性，得到了其在Ｌ＿ｐ（｜ｚ｜＝１）空间上（０＜ｐ＜＋∞）收敛于ｆ（ｚ）∈Ａ（｜ｚ｜≤１）的逼近阶。     

一个解线性不等式组的新方法

对于线性不等式系统（１）：ＡＴｘ≥ｂ，Ａ∈Ｒｎ×ｍ，ｂ∈Ｒｍ，ｍ≤ｎ，ｒａｎｋ（Ａ）＝ｍ给出了一个解系统（１）的迭代算法，并详细地研究了算法的基本性质。     

Szasz—Mirakjan算子逼近的一个下方估计

本文主要给出Ｓｚａｓｚ－Ｍｉｒａｋｊａｎ算子逼近的一个下方估计，若ｗ（ｔ）∈Ｎ＾β（０＜β＜１），ｆ∈Ｃ１［０，∞］且ｗ（ｆ，δ）－ｗ（δ），则存在常数ｋ＞０，使‖Ｓｎ（ｆ）－ｆ‖ｃ１≥ｋｗ（１／ｎ）。     

关于Lebesgue可测性的映射不变性

讨论了在映射Ｔ：Ｒｎ→Ｒｍ下，点集Ｔ（Ａ）Ｒｍ与Ｔ－１（Ｂ）Ｒｎ的可测性，研究了映射Ｔ的保零测性与保可测性的条件．作为推论证明了：当ＥＲｎ可测且ＡＲｎ最多可数时，Ｅ＋Ａ与Ｅ＃Ａ都可测，其中Ｅ＋Ａ＝ｘ＋ａ｜ｘ∈Ｅ，ａ∈Ａ｛｝，Ｅ＃Ａ＝ｘ＃ａ｜ｘ∈Ｅ，ａ∈Ａ｛｝（ｘ＃ａ＝（ｘ１ａ１，ｘ２ａ２，…，ｘｎａｎ））．特别地，得到了Ｌｅｂｅｓｇｕｅ测度的平移不变性     

一类半线性弱双曲型方程的初值问题

研究如下一类问题｛ｕｔｔ＋Ｘ＾＊１Ｘ１ｕ＋Ｘ＾＊２Ｘ２ｕ＝ｆ（ｕ）｛ｔ＝０：ｕ＝０，ｕｔ＝ｈ（ｘ，ｙ），其中ｆ∈Ｃ＾１（Ｒ＾１），ｆ（０）＝０，ｈ∈Ｈ＾５（Ｒ＾２）并具有紧支集，ｓ＞ｍ／２（ｍ＋１），Ｘ１，Ｘ２是Ｒ＾２上的光滑向量场并满足ｍ阶Ｈｏｒｍａｎｄｅｒ条件，在以上假设下，得到了问题强解的存在性及正则性。     

关于（f~（k＋1））~（k）的值分布，Ⅱ

关于（ｆ~（ｋ＋１））~（ｋ）的值分布，Ⅱ黄珏建立了一个基本不等式（定理１），其中于｜Ｚ｜＜Ｒ＜（０＜Ｒ≤＋∞）内亚纯的函数ｆ（ｚ）的特征函数Ｔ（ｒ，ｆ）由计算函数与所界囿，而ｋ∈Ｎ与ａ∈Ｃ＼｛０｝．此外，还给出了这个不等式的一些应用．作为它的应用之一...     

极大算子的一个注记

本文证明了当Ｗ∈Ａ１，ｆ∈ＢＭＯｗ，ｉｎｆＭ（ｆ）（ｘ）＜∞时，Ｍ（ｆ）（ｘ）∈ＢＭＯ_ｗ且存在不依赖于ｆ的常数Ｃ，使得     

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     

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