B_3-型量子群的 Gelfand-Kirillov 维数

本文旨在计算B_3-型量子群的Gelfand-Kirillov维数,所用方法是:首先利用RingelHall代数方法计算B_3-型量子群的所有根向量之间的拟交换公式,然后利用相应的B_3-型量子群的Grobner-Shirshov基计算B_3-型量子群的Gelfand-Kirillov维数,得到的主要结果是B_3-型量子群的Gelfand-Kirillov维数等于21.     

紧量子群与乘法酉算子的关系

通过紧量子群的余乘法的余结合性，在一定的Hilbert空间上构造出了乘法酉算子，并讨论了乘法本算子对应量子群与紧量子群的关系。从而给出了紧量子群的对偶量子群。     

一个基于量子群的分子对接药物设计算法

量子群作为经典李群、李代数的基本对称概念的推广,有着丰富的代数、几何及物理性质.本文基于量子群的基本理论,结合药物分子设计中的分子对接问题,在李群机器学习的基础上提出了一个基于量子群的分子对接药物设计方法,从而进一步丰富了李群机器学习理论.本文首先建立了基于量子群的分子对接模型,并设计了基于量子群生成元的分子匹配算法,运用此算法对小分子数据库中的分子进行对接,并将试验结果与Autodock4.0、分子动力学算法的对接时间和精度进行比较和分析.实例测试表明了量子群的理论与药物分子对接相结合的合理性及有效性.     

G2型量子群表示的Grobner—Shirshov基

用单李代数的泛包络代数表示的Grobner-Shirshov基方法,也就是Grobner-Shirshov对（pair）方法,来构造G2型量子群表示的Grobner—Shirshov基是非常苦难的。而用双自由模方法来构造G2型量子群的有限维不可约表示的Grobner—Shirshov基是非常方便的;以已知的G2型量子群的Grobner—Shirshov基为基础．用双自由模方法构造G2型量子群的不可约表示的Grobner-Shirshov基。     

B2型量子群的PBW形变及其对称性

量子群的负部分是量子群理论中出现的一类重要的连通分次代数,其PBW形变简称为量子群的PBW形变。 除了A2情形,它们的定义关系式均是具有混合次数的齐次量子Serre关系式。 特别地, B2型量子群的负部分的定义关系式分别是次数为3和4的2个量子Serre关系式。 在连通分次代数的PBW形变理论的框架下, 本文明确刻画了B2型量子群的所有PBW形变并研究了它们的对称性, 即给出了B2型量子群的4类对合反自同构下的对称PBW形变。     

关于A_5型量子群单项式的讨论

确定A5型量子群的908个单项式,并且经过大量的计算发现对于A5型量子群的单项式来说,文中给出的充分条件失效,这表明即使对最简单的A5型的量子群,典范基的行为也不是一致的.     

F4型量子群表示的Groebner—Shirshov基

本文以凡型量子群表示的Groebner—Shirshov基为基础,利用双自由模方法给出凡型量子群的有限维不可约表示的Groebner-Shirshov基．     

Hopf*-代数的Ore扩张

对Hopf*-代数的Ore扩张何时保持*-结构给出了充分必要条件.讨论了群代数、量子群"ax+b"以及量子群Uq(sl(2))上的Hopf*-结构和Ore扩张.     

Cn系列量子群的De—Rham复形

首先介绍Ｃｎ系列量子群，并给出相应的双协变一阶微分运算。最后，给出了Ｃｎ系列量子群的Ｄｅ－Ｒｈａｍ复形。     

紧群的基本算子对应对偶量子群

讨论紧群对应的基本算子所具有的性质，给出它所对应一对对偶量子群的具体刻画，从而对抽象C^*－量子群的了解有很大的帮助。     

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