对称群S_(2γ)的基本旋表示张量积的对称化

这篇论文应用约化记号解决了对于任一γ对称群S_(zγ)的基本旋表示的张量积的对称化问题。     

CSP方案的中止规则［R］

本文引入中止概率的概念，讨论适用于各类连续抽样方案的中止规则［Ｒ］的统计特性。结果表明，规则［Ｒ］的添加不改变方案原有的基本统计特性，而且全面优于另一类已被广泛采用的规则［Ｓ］．     

《机械设计基础》课程定位的论证

文章通过对实际的调查研究对机械设计基础知识的要求，对高职高专教学中出现的问题进行了分析，指出了其存在的问题，并根据《高职高专非机械类专业的机械类课程教学改革研究》课题研究的目标。结合实际提出了机械设计基础教学改革创新的新思路。     

创建有特色的高品质网站的基本要素

介绍创建风格独特的高品质网站的基本要素，并对网站作了基本分类，强调应注意的问题。     

The basic reproduction ratio for a model of directly transmitted infections considering the virus charge and the immunological response

Correspondent author email: hyunyang{at}ime.unicamp.br In order to describe mathematically the transmission of microparasites,especially directly transmitted infections, it is usual to setup differential equations assuming the mass action law and ahomogeneously mixed population. In this paper we analyze sucha model taking into account heterogeneity with respect to theinfectivity, that is, the variability in the evolution of theinteraction between parasite and the human host during the infectiousperiod. The well established biological phenomenon of initialincrease in parasite abundance followed by its decrease, dueto the interaction between the host's immunological responseand the parasite, has thus been taken into account The variableamount of microparasites eliminated by an infectious individual,and the different (heterogeneous) immunological response buildup by the host when in interaction with parasite are presentin the model. The analytical expression for the basic reproductionratio is derived through stability analysis.     

A Banach space block finitely universal for monotone bases

A reflexive Banach space with a basis is constructed having the property that every monotone basis is block finitely representable in each block basis of .

     

论本体论向认识论的转变与马克思主义哲学建立的关系

近代哲学发展经历的是从直接本体论提问向认识论提问转向,并导致直接本体论终结的过程。这一过程最终使哲学明确了自己的对象———纯粹思维领域,导致真正科学的哲学———马克思主义哲学的建立。     

2001年全国大学生数学建模赛题的若干评述

文章是对2001年度全国大学生数学建模题中B，C，D三题的评述，旨在深化对竞赛题目的理解和认识，并展示数学建模的魅力。     

On Sharma-Swarup algorithm for time minimising transportation problems

In this note, the fallacy in the method given by Sharma and Swarup, in their paper on time minimising transportation problem, to determine the setS _hkof all nonbasic cells which when introduced into the basis, either would eliminate a given basic cell (h, k) from the basis or reduce the amountx _hkis pointed out.