关于Genocchi多项式与Bernoulli多项式的恒等式

利用生成函数的方法,讨论了Genocchi多项式、Bernoulli多项式与Euler多项式线性组合的乘积问题,得到了Genocchi多项式与Bernoulli多项式、Euler多项式的一些组合恒等式.     

关于按一些正交多项式级数展开的研究

一般多项式都可以展开为正交多项式的级数形式,而勒让德多项式、厄米特多项式和拉盖尔多项式都是典型的正交多项式。文章研究了xn关于这些正交多项式的级数展开及其它们相互之间的级数展开。     

有限域上线性q-相伴多项式及其应用

先探讨利用有限域上线性q-相伴多项式由低次不可约或本原多项式构造高次不可约多项式或本原多项式。其次证明多项式与其线性q-相伴多项式的整除关系等价,通过求次数低的多项式的最大公因式,给出他们的线性q-相伴多项式的最大公因式,比直接求高次数的线性q-相伴多项式的最大公因式大大减少了计算量。     

纽结的琼斯多项式性质

利用考夫曼多项式来讨论纽结的琼斯多项式的性质．进而给出什么样的纽结多项式具有零根．由于考夫曼多项式是由纽结的投影图的状态多项式来表示的,所以多项式的次数就有明显的特征．利用投影图和多项式的这些性质,讨论了纽结的等价性和某些纽结的琼斯多项式的性质．     

几个Bernoulli多项式和Euler多项式的关系式

利用Bernou lli多项式和Eurler多项式的定义,建立了Bernou lli多项式和Eu ler多项式之间的内在联系,得到了几个关于Bernou lli多项式和Eu ler多项式之间有趣的恒等式.     

关于高阶Genocchi多项式的恒等式

根据高阶Genocchi多项式、高阶Bernoulli多项式和高阶Euler多项式定义,利用发生函数研究高阶Genoc-chi多项式、高阶Bernoulli多项式和高阶Euler多项式之间的关系,并给出了一些新型恒等式。     

纽结Jones多项式和整系数多项式

本文利用纽结Jones多项式的性质研究了整系数多项式的性质,主要研究了某些宽度是5的7次和8次整系数多项式和纽结多项式的关系,给出整系数多项式是纽结多项式的充分必要条件,进而给出整系数多项式是交错纽结的Jones多项式的充分必要条件.同时根据这些性质给出了某些交错纽结的Arf不变量.     

多项式乘除运算的简捷计算方法

讨论了代数多项式运算中多项式乘法与多项式除法的公式化计算问题,给出了多项式乘法的简捷系数计算方法,以及多项式除法中商函数与余函数的计算方法.     

关于一个多项式序列的对称关系

研究了一个与广义Bernoulli多项式、高阶Apostol-Bernonlli多项式和高阶Apostol-Euler多项式相关的多项式序列.运用组合技巧建立了该多项式序列与幂和之间的两个对称关系.     

多元整系数多项式因式分解（Ⅰ）——多项式复杂度算法

将ｔ（ｔ是不小于２的整数）元整系数多项式看成系数为ｔ－２元整系数多项式的二元多项式．利用已有的多项式时间复杂度的分解一元整系数多项式的算法，得到了一个分解多元整系数多项式时间复杂度的算法．     

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