广义正定Hermite矩阵的若干性质

本文讨论广义正定Hermite矩阵的若干性质,并给出该矩阵类的几个等价命题。     

微分几何中张量部分的教学研究

讨论在微分几何课程中关于张量的计算及应注意的问题．特别指出了在Ｅｉｎｓｔｅｉｎ和式公约中易犯的错误并揭示了ｇｉｋｇｋｌ＝δｌｋ与矩阵乘法的关系．证明了定理“曲面上一点处，两主曲率相等，则该点处一切方向均为主方向”，最后给出一些实例     

非负循环矩阵的范数

本文用生成元确定了非负循环矩阵的范数。     

Structural properties of matrix metalloproteinases

Matrix metalloproteinases (MMPs) are involved in extracellular matrix degradation. Their proteolytic activity must be precisely regulated by their endogenous protein inhibitors, the tissue inhibitors of metalloproteinases (TIMPs). Disruption of this balance results in serious diseases such as arthritis, tumour growth and metastasis. Knowledge of the tertiary structures of the proteins involved is crucial for understanding their functional properties and interference with associated dysfunctions. Within the last few years, several three-dimensional MMP and MMP-TIMP structures became available, showing the domain organization, polypeptide fold and main specificity determinants. Complexes of the catalytic MMP domains with various synthetic inhibitors enabled the structure-based design and improvement of high-affinity ligands, which might be elaborated into drugs. A multitude of reviews surveying work done on all aspects of MMPs have appeared in recent years, but none of them has focused on the three-dimensional structures. This review was written to close the gap. Received 18 November 1998; accepted 11 December 1998     

矩阵柔性管理与应用

本文主要介绍了矩阵柔性管理方法的背景、概念和内涵。     

矩阵方程AXB+CYD=E的Toeplitz矩阵解

利用矩阵的Kronecker积、矩阵的拉直算子和Moore-Penrose广义逆的有关知识,给出了矩阵方程AXB+CYD=E的Toeplitz矩阵解和对称Toeplitz矩阵解的表达式,并给出了其最小二乘解的一般形式。     

平面小波标架

「３」给出了一维二进制小波标架的构造，本文给出了Ｌ＾２（Ｒ＾２）的一组与伸缩矩阵Ｍ相关的平面小波标架。     

求特征根,特征向量的新方法

本文介绍了一种求特征根，特征向量的新方法，该方法在求特征根的每一步运算同时也是求全球特征向量的运算，较一般教科学上的传统方法规范易懂且计算量较少，便于计算机运算，且顺带找到了一个矩阵可以对角化的较简单的充要条件。     

对称正交对称矩阵反问题的最小二乘解

讨论了对称正交对称矩阵反问题的最小二乘解，得出了解的表达式。     

Fibonacci矩阵的探讨与应用

将Fibonacci数列推广到Fibonacci矩阵,利用Fibonacci矩阵的特殊性和矩阵的性质证明Fibonacci数列的性质。