类氢原子径向矩阵元的数值计算

利用ＢＡＳＩＣ语言编制出类氢原子径向矩阵元〈Ｒｎ１ｌ１（ｒ）｜（Ｚｒａ０）Ｋ｜Ｒｎ２ｌ２（ｒ）〉的数值计算程序。     

三维空间中一类波动方程渐近理论新探

研究了三维空间中一类半线性波动方程解的渐近理论，在古典空间Ｃ＾２中得到了形式近似解的合理性在长时间ｔ∈「０，｜ε｜－／２－ｋ（ｐ－１）」（ε充分小，０〈２－ｋ（ｐ－１）〈１，０〈ｋ〈１，ｐ〉３）内成立，和以前的相关结果比较，得到的时间阶函数更优化了。     

不同Nb,Mo含量的Fe基微晶软磁合金磁性能的频谱特性

利用无磁场、纵向磁场和横向磁场３种热处理方式，制力求４种不同Ｎｂ、Ｍｏ含量的Ｆｅ７４．５Ｃｕ１Ｍ３Ｓｉ１２．５Ｂ９．５（Ｍ为Ｎｂ、Ｍｏ原子质量百分数之和）纳米晶试样，分别测量试样的复值磁导率｜μ｜Ｏ．３，矫顽力｜Ｈｃ｜和铁芯损耗Ｐｃｏ．２，分析试样的频谱特性和成分的影响．结果表明，不含Ｍｏ的Ｆｅ７４．５Ｃｕ１Ｎｂ３Ｓｉ１２．５Ｂ９．５合金的｜μ｜０．３随频率增加而下降的趋势最小，需含Ｍｏ的Ｆｅ７４．５Ｃｕ１Ｎｂ２Ｍｏ１Ｓｉ１２．５Ｂ９．５合金的｜μ｜Ｏ．３值最大，且｜Ｈ｜和Ｐｃｏ．２的值最小．在３种磁场热处理中，无磁场热处理后的试样的｜μ｜０．３最大，且｜Ｈｃ｜和Ｐｃｏ．２的值最小；而纵向磁场热处理后的试样的｜μ｜０３最小，且｜Ｈｃ｜和Ｐｃ０２的值最大     

Tapia 半内积与 Banach 空间的几何性质

利用Ｔａｐｉａ半内积（ｘ,ｙ）Ｔ＝ｌｉｍｔ→０＋［（ｘ＋ｔｙ２－ｘ２）／（２ｔ）］,ｘ,ｙ∈Ｘ,研究了Ｂａｎａｃｈ空间Ｘ的自反和逼近性质,并在光滑的Ｂａｎａｃｈ空间Ｘ上利用由Ｔａｐｉａ半内积定义的一类连续线性泛函Ｔ（Ｘ）＝｛ｆｘ∈Ｘ＊｜〈ｆｘ,ｙ〉＝（ｘ,ｙ）Ｔ;ｘ,ｙ∈Ｘ｝研究了Ｂａｎａｃｈ空间的严格凸、一致凸以及具有性质（Ｈ）的特征．     

类氢原子和同调谐振子坐标幂函数平均值〈nα|xs|nα〉快捷计算方法

从同调谐振子及类氢原子坐标幂函数平均值〈nα｜x^s｜nα〉的邻居关系出发，以极为简洁的算法展示了坐标幂函数平均值〈nα｜x^s｜nα〉快速计算过程，给出了用计算机系统高效计算波函数和〈nα｜x^s｜nα〉所需Mathematica源程序代码．     

Bernstein-Sheffer算子在CΩ空间上的逼近等价定理

研究了 Ｂｅｒｎｓｔｅｉｎｓｈｅｆｆｅｒ 算子在 ＣΩ空间上的逼近性质,建立了逼近等价定理：　　１）当 ｈ＞ ０ 时, Ｂ Ｈｎ 是［０,１］到自身的正线性算子,则 ｆ∈ Ｄ２＝ ｛ｆ｜‖ Ｂ Ｈｎ （ｆ）－ ｆ‖Ω＝ Ｏ（ｎ－ α２ ）,ｆ ∈ ＣΩ,等价 Ｋ（ｆ ,ｔ）＝ Ｏ（ｔα２ ,｜０＜ α＜ ２）;　　２）对 ０＜ α＜ ２,ｆ∈ ＣΩ,对下命题等价　　ｉ）ｆ∈ Ｄα＝ ｛ｆ｜‖ Ｂ Ｈｎ （ｆ）－ ｆ‖Ω＝ Ο（ｎ－ α／２）｝;　　ｉｉ）对 Ｌ∈ Ｃ０ ,有 ｜ Ｌ（ｆ）｜ ≤ Ｍ ｆ （｜ Ｌ｜（Ω））１－ α／２（∫１０｜ Ｌ（ｋ（·,ｕ））｜ Ω（ｕ）φ（ｕ） ｄｕ）α／２．     

二维渗流临界状态连接函数的幂估计

本文对二维边渗流模型给出了临界状态时连接函数τＰｃ（ｏ，ｖ）的幂估计，即存在常数ａ＞０，Ｃ１＞０，Ｃ２＞０使得Ｃ１｜ｖ｜＾－１≤τｐｃ（ｏ，ｖ）≤Ｃ２｜Ｖ｜＾－ａ，这里ｏ＝（０，０），ｖ＝（ｖ１，ｖ２）∈Ｚ＾２，｜ｖ｜＝｜ｖ１｜＋｜ｖ２｜．     

复超球上H~p函数的一个特征

本文给出Ｃｎ单位球上Ｈｐ函数的一个特征，即ｆ∈Ｈｐ（Ｂ）（０＜ｐ＜＋∞）当且仅当∫Ｂ（１－｜ｚ｜）｜ｆ（ｚ）｜Ｐ－２｜（Ｒｆ）（ｚ）｜２ｄυ（ｚ）＜＋∞，其中Ｒｆ是ｆ的径向导数     

拟线性椭圆方程在R^N上的结点径向解的存在性

研究了Ｒ＾Ｎ（Ｎ≥２）上的拟线性椭圆方程－ｄｉｖ（｜△↓ｕ｜＾ｐ－２△↓ｕ）＋｜ｕ｜＾ｐ－２ｕ＝ｆ（｜ｘ｜,ｕ）,ｘ∈Ｒ＾Ｎ,ｕ∈Ｗ＾１,ｐ０（Ｒ＾Ｎ）的具任意多个结点的径向解的存在性,其中１〈ｐ〈∞,所得结果推广了Ｂａｒｔｓｃｈ和Ｗｉｌｌｅｍ（１９９３）关于ｐ＝２时的相应结果。     

积分型的Bernstein不等式

本文得到以下积分型Ｂｅｒｎｓｔｅｉｎ不等式：令Ｐｎ（Ｄ）＝■（Ｄ２＋２α,Ｄ＋α２＋β２３）＞∏（Ｄ－入ｊ）,其中Ｄ＝ａ／ｄｘ, ａ,βｓ, λｊ为实数;βｓ＞ ０,ｓ＝１,２,…, ｋ;ｊ＝１,２,…, ｎ－２ｋ;β＝■βｓ,ｐ≥１则１．若ｍ＞４β,则对任意的ｍ阶三角多项式Ｔｍ（ｘ）,有 （∫０｜ Ｐｎ（Ｄ）Ｔｍ（ｘ）｜Ｐｄｘ）１／Ｐ≤｜Ｐｎ（ｉｍ）｜（∫０｜Ｔｍ（ｘ）｜ Ｐｄｘ）２．若α＞４β,对ｆ（ｘ）∈Ｂσ,有 （∫－∞｜Ｐｎ（Ｄ）ｆ（ｘ）｜ｐｄｘ）≤｜Ｐｎ（ｉσ）｜（∫－∞｜ｆ（ｘ）｜ｐｄｘ）     

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.     

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     

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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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