基于改进TOPSIS法的供应商选择方法

本文在确定供应商选择的指标体系的基础上，以各指标作为评价的目标，建立评价供应商的改进TOPSIS法，求解各指标对应的客观权重，然后利用权重计算各供应商与理想解的距离，根据各供应商与理想解的距离大小确定优劣排序，实现主观信息与客观信息相结合的合理评价，最后结合案例分析证明了评价体系和评价方法的有效性。     

利用伪变量对农林多点试验进行回归分析

在农林多点试验中，为比较各点之间的响应水平差异情况，通常采用多点试验的方差分析；而要对各点的响应水平进行预测，则需进一步对不同地点建立回归方程。本文利用包含伪变量的回归方程分析农林多点试验，既可以检验各点响应水平之间的差异情况，同时又解决了各点响应水平的预测问题。     

需求导向的双激励临界点型综合评价方法

为了从综合评价的角度解决管理中的激励问题，本文提出一种需求导向的双激励临界点型评价方法，其最大的特色在于评价需求者和被评价对象的需求是方法构建的重要导向，并采用对被评价对象的不同指标分别激励的做法。在考虑被评价对象的需求时，通过判断各指标对被评价对象排序的影响情况，确定被评价对象各指标的优劣类型进而确定对应指标的激励方式和激励量。在考虑评价需求者的需求时，首先通过设置各指标的双激励临界点确定被评价对象各指标的激励方式，然后计算各指标的激励系数，进而确定各被评价对象的激励量。最后通过一个算例对方法的应用进行了说明。     

脑梗塞发病因素的分析

周家仪．脑梗塞发病因素的分析．数理统计与管理，１９９７，１６（４），２５～２８．本文在调查脑梗塞发病因素的基础上，以ｌｏｇｉｓｔｉｃ回归模型拟合，研究各发病因素在单独作用及其联合作用下，各因素的相对危险性。并用对数线性模型配合，研究各因素间的各阶交互作用     

正多面体的分类定理的一个初等证法

在平面几何中，把各边等长而且诸内角皆相等的多边形定义为正多边形，易见正多边形有一个对称中心，它和其各顶点距离相等，而且正多边形的另一特征性质乃是其顶点共圆的等边多边形，同样地，在立体几何中，把各个面皆为互相全等的正多边形，而且各棱的两面角皆相等的多面体定义为正多面体（regular polyhedron）。     

关于建立投资部门结构的定量分析模型

本文从系统的、全局的观点出发，在一定范围内，对各部门效益进行量化的对比分析，排出各部门在整体中的排序，作为投资分配的依据，以达到投资结构的优化。     

阵列代数与高阶矩

阵列代数与高阶矩李作发，罗玉芳（武汉测绘科技大学，武汉４３００７０）在概率中，ｎ维随机变量的协方差阵表达了各分量围绕它们的数学期望的疏散程度，以及各分量间相关程度的一组数字特征．我们将利用阵列代数引进ｔ个ｎ维随机向量的各分量间相关程度的ｔ阶相关中心矩...     

二维有序样本的有约束系统聚类

二维有序样本进行聚类必须满足两个要求：（１）类内各单元的相似性和类间的差异性；（２）各单元在位置上的有序性和类内的连通性。根据这些要求，将各单元观测指标间的距离矩阵作为聚类的指示矩将各单元之间的区位联系矩阵作为聚类的约束矩阵，在约束矩阵给出的约束条件之下，以类间单元指标的最大距离作为类间相似性指标，在指示矩阵中通过逐步聚并而将全部单元合并归类，即可得出满足要求的样本分类。     

浅谈珠算技术在银行系统的应用

银行是国民经济的综合部门，是全国性的薄记机关和资金分配的计算机关。国民经济各部门、各单位的资金活动都要通过银行信贷，现金、出纳，结算中心，是全国的总会计，总出纳。银行营业部门每天都要经办大量的存放款、储蓄和结算等业务，     

双向随机区组设计在品种区域试验中的应用

本文将双向随机区组设计方法应用于品种区域试验中，在各试验点均采用双向随机区组设计，用较少的试验小区控制各试验点两个方向的土壤差异，减少试验误差，提高品种与地区交互效应的显著性，进而对品种进行稳定性与适宜性分析。     

RECENT PROGRESS ON SPHERICAL HARMONIC APPROXIMATION MADE BY BNU RESEARCH GROUP ——In memory of Professor Sun Yongsheng

As early as in 1990, Professor Sun Yongsheng, suggested his students at Beijing Normal University to consider research problems on the unit sphere. Under his guidance and encouragement his students started the research on spherical harmonic analysis and approximation. In this paper, we incompletely introduce the main achievements in this area obtained by our group and relative researchers during recent 5 years （2001-2005）. The main topics are： convergence of Cesaro summability, a.e. and strong summability of Fourier-Laplace series; smoothness and K-functionals; Kolmogorov and linear widths.     

A unified approach to certain problems of best local approximation

In this paper we study best local quasi-rational approximation and best local approximation from finite dimensional subspaces of vectorial functions of several variables. Our approach extends and unifies several problems concerning best local multi-point approximation in different norms.     

Boundedness for commutators of multipliers on Hardy type spaces

In this paper, we study the commutators generalized by multipliers and a BMO function. Under some assumptions, we establish its boundedness properties from certain atomic Hardy space Hb^p（R^n） into the Lebesgue space L^p with p 〈 1.     

Towards Excellence in Science Chinese Academy of Sciences

<正>May 26,2014,Beijing Science is a human enterprise in the pursuit of knowledge.The scientific revolution that occurred in the 17th Century initiated the advances of modern science.The scientific knowledge system created by     

THE 8~(th) INTERNATIONAL CONGRESS ON INDUSTRIAL AND APPLIED MATHEMATICS

<正>August 10-14,2015Beijing,ChinaThe International Congress on Industrial and Applied Mathematics(ICIAM)is the premier international congress in the field of applied mathematics held every four years under the auspices of the International Council for Industrial and Applied Mathematics.From August 10 to 14,2015,mathematicians,scientists     

Bounds for the zeros of polynomials

Let P(z)=∑↓j=0↑n ajx^j be a polynomial of degree n. In this paper we prove a more general result which interalia improves upon the bounds of a class of polynomials. We also prove a result which includes some extensions and generalizations of Enestrǒm-Kakeya theorem.     

Boundedness of commutators related to Marcinkiewicz integrals on hardy type spaces

In this paper, the authors study the boundedness of the operator [μΩ, b], the commutator generated by a function b ∈ Lipβ(Rn)(0 ＜β≤ 1) and the Marcinkiewicz integrals μΩ, on the classical Hardy spaces and the Herz-type Hardy spaces in the case Ω∈ Lipα(Sn-1)(0 ＜α≤ 1).     

Jacobi polynomials used to invert the laplace transform

Given the Laplace transform F(s) of a function f(t), we develop a new algorithm to find an approximation to f(t) by the use of the classical Jacobi polynomials. The main contribution of our work is the development of a new and very effective method to determine the coefficients in the finite series expansion that approximation f(t) in terms of Jacobi polynomials. Some numerical examples are illustrated.     

Generalization of the interaction between Haar approximation and polynomial operators to higher order methods

In applications it is useful to compute the local average empirical statistics on u. A very simple relation exists when of a function f（u） of an input u from the local averages are given by a Haar approximation. The question is to know if it holds for higher order approximation methods. To do so, it is necessary to use approximate product operators defined over linear approximation spaces. These products are characterized by a Strang and Fix like condition. An explicit construction of these product operators is exhibited for piecewise polynomial functions, using Hermite interpolation. The averaging relation which holds for the Haar approximation is then recovered when the product is defined by a two point Hermite interpolation.