Convergence theorems for implicit iteration process for a finite family of continuous pseudocontractive mappings

In this paper, a necessary and sufficient conditions for the strong convergence to a common fixed point of a finite family of continuous pseudocontractive mappings are proved in an arbitrary real Banach space using an implicit iteration scheme recently introduced by Xu and Ori [H.K. Xu, R.G. Ori, An implicit iteration process for nonexpansive mappings, Numer. Fuct. Anal. Optim. 22 (2001) 767-773] in condition αn∈(0,1], and also strong and weak convergence theorem of a finite family of strictly pseudocontractive mappings of Browder-Petryshyn type is obtained. The results presented extend and improve the corresponding results of M.O. Osilike [M.O. Osilike, Implicit iteration process for common fixed points of a finite family of strictly pseudocontractive maps, J. Math. Anal. Appl. 294 (2004) 73-81].     

红外/毫米波多模寻的系统关键技术分析

概述了红外／毫米波多模寻的系统的主要技术特点，对多谱段头罩的选材，外形与厚度的设计进行了计算与理论分析；探讨了适宜于多模导引头的多种类型稳定位标器和复合天线系统系统方案；重点对外／毫米波融合处理器系统进行了研究，针对红外，毫米波探测系统的输出信息，确定了多模寻的系统的融合层次与融合准则。     

母线含非圆曲线的超声变幅杆精确加工的研究

介绍在普通数控车床上准确加工母线含非圆曲线的超声变幅杆的两种通用程序的编制方法及应用。方法一以等弦长划分待加工曲线决定节点,以平均曲率半径作为插补圆半径,以C语言编制出加工代码生成软件。方法二采用VB6编程,使用双圆弧法进行插补,伸缩步长法进行误差控制和决定节点,可设定并控制插补误差理论值,运行时生成的NC代码指令条数少,适应任何超声变幅杆的加工,界面友好易用。上述两程序在进行切削加工前,均可全程模拟加工过程。两软件经分别在GSK-928和G-CNC6135A(G)数控车床上应用,效果良好。而第一软件较完善。     

传导型电源干扰的抑制

本文以开关电源为例,分析了电源EMI滤波器的等效电路,并介绍了用于抑制电源线电磁干扰的滤波器的插入损耗的计算方法,为电源EMI滤波器的设计提供了参考.     

Common fixed points for maps on cone metric space

The purpose of this paper is to generalize and to unify fixed point theorems of Das and Naik, ?iri?, Jungck, Huang and Zhang on complete cone metric space.     

Simple linear approximations to the likelihood equation for combining evidence in multiple 2×2 tables: A critique of conventional procedures

Summary The conventional procedures for a common odds ratio in multiple 2×2 tables are explored and critiqued. Three types of linear approximation to the likelihood equations under some models of common measures of association are used to derive the popular conventional estimators and test statistics. Some of them are derived using the model of the common standardized difference which is an unacceptable measure. The derivation provides us with some characteristics of the procedures. The advantages of procedures based on the conditional and unconditional likelihoods are discussed. The Institute of Statistical Mathematics     

Common knowledge,communication, and convergence of beliefs

The aim of this paper is to examine the adequacy of the so-called expected utility theory. It is concluded that the theory is inadequate when the decision-maker is decreasingly risk averse and his initial wealth is risky.     

谱估计方法的通用矩阵表示与新的谱估计方法

本文指出几种常见的谱估计方法可以归结为同一数学问题并可用同一矩阵方程表示。从这通用矩阵表示可导出许多新的谱估计方法。本文还具体研究了相关阵特征矢量空间谱估计方法,得出一些有益的结论。     

On the Logic of Common Belief

We investigate an axiomatization of the notion of common belief (knowledge) that makes use of no rules of inference (apart from Modus Ponens and Necessitation) and highlight the property of the set of accessibility relations that characterizes each axiom. Mathematics Subject Classification: 03B45, 68T25.     

g-非扩张型FUZZY映象序列的公共FUZZY混合不动点

提出fuzzy映象序列的公共fuzzy混合不动点的概念，研究了g-非扩张型fuzzy映象序列的公共fuzzy混合不动点定理，我们所得的定理改进和推广了近期相关的重要结果．