二元关系传递性的矩阵判别法

判断一个二元关系是否具有传递性,用定义与关系图的方法比较繁琐,利用关系矩阵判断其传递性,能避免繁琐的过程。利用矩形判别法、三角形判别法、十字型判别法,使可传递关系得到的判别变得既直观又迅速。     

有限集上二元关系传递性的矩阵判别法

通过对二元关系的关系矩阵元素特征的观察和对Warshall算法的深入研究,得出了3种判断有限集上的二元关系是否具备传递性的矩阵判别法：逻辑相加判别法、逻辑乘方比较判别法、打圈画叉判别法．     

一种语言判断矩阵不一致性的修正方法

文章研究了语言判断矩阵不一致性的修正方法。首先利用0-1型排列偏好关系矩阵是否是标准0-1型排列矩阵,得出语言判断矩阵是否具有满意一致性;若不具有满意一致性,通过改变0-1型排列偏好关系矩阵的元素值来修正方案两两比较时出现的循环现象,使其成为标准0-1型排列矩阵;最后给出实例验证这种方法的合理性和有效性。     

基于衡平矩阵的二元关系传递性的判别法

直接根据文献[1-3]中的离散数学教材中的二元关系传递性定义,有时很难判定。通过研究突破了二元关系传递性定义的局限性,通过引入衡平矩阵的概念,给出一个二元关系具有传递性的充要条件是它的关系矩阵为衡平矩阵,并给出了利用衡平矩阵判定二元关系具有传递性的几种方法,使对传递性的判别直观、形象、方便、快捷。     

一致判断矩阵与一致模糊矩阵的关系

通过对一致判断矩阵与一致模糊矩阵的关系研究证明：一致判断矩阵与一致模糊矩阵一样具有中分传递性,符合人类决策思维的一致性;运用模糊层次分析法决策会造成判断信息、一致性及累积优势度的损失．     

致判断矩阵与一致模糊矩阵的关系

通过对一致判断矩阵与一致模糊矩阵的关系研究证明一致判断矩阵与一致模糊矩阵一样具有中分传递性,符合人类决策思维的一致性;运用模糊层次分析法决策会造成判断信息、一致性及累积优势度的损失.     

残缺互补判断矩阵次序一致性及排序方法

针对残缺互补判断矩阵次序一致性检验、调整及排序方法存在的问题,采用残缺互补判断矩阵次序一致性及排序的偏序集表示方法.在界定偏序集、模糊互补判断矩阵、残缺互补判断矩阵、截集矩阵等定义基础上,利用偏序关系矩阵的转换关系给出次序一致性的检验定理;证明了残缺互补判断矩阵任意截集矩阵满足传递性和残缺互补判断矩阵完全次序一致性的等...     

用面向对象的方法和计算机分析关系的传递性

关系传递性的特征比较复杂,本文给出的两种方法,分别可以从关系图和关系矩阵中判断关系的传递性,特别是用面向对象的方法判断关系的传递性,不仅简单、直观、实用而且准确。     

一类衡平矩阵的判定与应用

给出了判定0-1矩阵为衡平矩阵的几种方法。因为每一个0-1矩阵对应一个二元关系的关系矩阵,从而给出了利用衡平矩阵判定二元关系具有传递性的几种方法。     

布尔矩阵与关系性质的判断

本文用布尔矩阵理论的方法对关系及其性质作了系统的论述，并给出了判断关系的可传递性的一个很方便的布尔矩阵方法。     

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     

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