三类p~4阶群的连通4度Cayley图

称有限群G的Cayley图X=Cay(G,S)是正规的,如果G的右正则表示R(G)正规于图X=Cay(G,S)的全自同构群。主要采用群论方法,证明了三类幂零类为3的p4(p是奇素数)阶群连通4度Cayley图都是正规的。     

有限半群上的顶点传递Cayley图

设S为有限半群,A是S的子集.半群S关于子集A的Cayley图记为Cay(S,A).文章证明了若Cay(S,A)是保色顶点传递的,则Cay(S,A)=(|S|·|Λ|/||)Cay(G,G′).即Cay(S,A)是几个不相交的群的Cayley图的并.     

拟二面体群的一个无限类1-正则4度Cayley图

群G的一个Cayley图X=Cay(G,S)称为正规的,如果右乘变换群R(G)在Aut(X)中正规.得到了拟二面体群G＝〈x,y|x2m=y2=1,xy=xm 1〉(其中m=2s,s为大于4的偶数)的一个无限类4度正规1-正则Cayley图 Cay(G,S),其中S={x,x-1,xs 1y,xs-1y},并且对2r阶拟二面体群的正规1-正则4度Cayley图进行了分类,其中r＞3.证明了2r阶拟二面体群的任意4度正规1-正则Cayley图同构于Cay(G,{x,x-1,xs 1y,xs-1y}),其中s=2r-2.     

2p2阶4度Cayley图

Cayley图Cay(G,S)称之为正规的,如果G的右正则表示R(G)是Cay(G,S)全自同构群的正规子群。决定了2p2(p为奇素数)阶群上4度连通1-正则Cayley图的正规性。     

两类2pq阶3度Cayley图的正规性

有限群G的一个Cayley图X=Cay(G,S)称为正规的,如果右乘变换群R(G)在图X的全自同构群Aut(X)中正规.决定Cayley图Cay(G,S)是否正规,对于确定它的自同构群的结构有重要意义.设p,q为奇素数,q相似文献   

奇数阶6度边传递Cayley图

关于有限群G的Cayley图Γ=Cay(G,S)称为边传递,如果图Γ的全自同构群Aut(Γ)在边集合E(Γ)上作用传递.该文给出了奇数阶6度边传递Cayley图的一个刻画.     

32p阶二面体群的4度Cayley图的正规性

群G关于其不包含单位元1的子集S的Cayley图Γ∶=Cay(G,S)称为正规的,如果G的右正则表示R(G)在Aut(Γ)中正规;称图Γ是G的正则表示(GRR),如果R(G)=Aut(Γ)且Γ是无向图.该文全面研究32p阶二面体群■(其中p是奇素数)的连通4度无向Cayley图的正规性,获得了丰富而有意义的结果,包括该群4度GRR的无限族.     

两类2pq~2阶群的3度Cayley图

群和图一直都是人们研究很多的数学对象,但把二者结合起来研究:应用图来研究群以及应用群来研究图则是比较近的工作.例如置换群的轨道图理论、群的Cayley图、对称图、半对称图等.主要研究了2pq2阶群G=〈a,b|apq2=b2=1,ab=a±r〉的3度Cayley图的正规性问题,这里q相似文献   

交错群A_(59)上的5度2-传递非正规Cayley图

称Cayley图Γ=Cay(G,S)是正规的,如果G在Aut(Γ)中正规.正规Cayley图在决定Cayley图的全自同构群中扮演着重要角色.在交错群A_(59)上构造了一个5度2-传递非正规Cayley图,并证明其全自同构群同构于A_(60).     

一类拟二面体群的三度Cayley图的正规性

有限群G的一个Cayley图X=Cay(G,S)称为正规的,如果右乘变换群R(G)在AutX中正规.决定Cayley图是否正规,对于确定它的自同构群的有重要意义.本文综合运用有限群的知识与图的组合技巧证明了一类4m阶拟二面体群G=〈a,b|a2m=b2=1,ab=am+1〉的3度无向连通Cayley图的正规性,其中m=2r,且r2,并得到该类正规Cayley图.     

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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