造型拓扑定理及证明

本文数学定义建筑学几个重要概念,建立几个具有实用意义的引理与推论,证明造型拓扑定理,完成“形式功能关系”课题的基础:数学模型的论证。     

Alperin定理的推广

本文讨论了不可分模的覆盖间的对应与Green对应间的联系,得到了几个关于模覆盖间对应关系的定理,所得结果推广了文[2]中的定理。     

四面体的几个有趣不等式

众所周知，三角形的射影定理揭示了边角关系，在三角形理论中扮演了重要角色．类似地，对于空间的四面体，也有相应的射影定理，它揭示了各侧面积与侧面间二面角的关系．本文利用空间的射影定理，探讨关于四面体的几个有趣不等式．     

Banach空间值鞅上的拟局部算子

本文研究了拟局部算子在几个Banach空间值鞅空间上的有界性.给出了几个有界性定理,证明了鞅空间的简单原子分解.得到几个极大算子和p均方算子的一系列鞅不等式以及鞅空间的包含关系.     

关于Clifford连分式的三项递推关系和 Pincherle''''s 定理

本文建立了Clifford连分式的三项递推关系和Pincherle's定理,并给出了它们的应用,也获得了关于Clifford连分式的矩阵递推关系的最小解的几个性质.     

一类不动子集的泛系研究

本文继续有关不动子集的泛系研究。在泛系框架下得到了Ⅰ型不动子集的存在准则;给出了自反关系类及等价关系类与不动子集的关系定理;引进了二元关系的不动点概念并对一类泛权网络建立了几个不动点存在定理。     

近似全局精确障碍方法:对数障碍函数法

本文给出一种关于不等式约束非线性规划问题的近似全局精确障碍方法,从近似的观点出发,通过引进对数障碍函数,我们得出了关于原始问题和障碍问题关系的几个定理,在近似的意义下,这些定理可以用来构建原始问题和障碍问题关系的基本理论框架。     

一个新的极大极小定理及应用

本文得到一个新的极大极小定理及其几个等价形式．作为这一结果的应用，我们得到区间空间上的Ｋｙ Ｆａｎ型截口定理，匹配定理和几个集值映象的不动点定理．     

关于DNA图及其标号图的进一步研究

2007年,Wang等得到了关于不包含环的DNA标号图的一个结果,在此基础上我们推广到一般有向图上,即任何无孤立点的有向图在友关系下恰有—个等价类的充要条件,并得出几个相应的改进结果.本文还给出了一个定理的反例,进而得到定理的修正和完善.由此容易推出Wang等的一个定理的必要条件也是充分的.     

停线及其关系

本文研究了几类停线之间的关系并纠正了文[1]中的几个错误；顺便给出了文[4]中一个定理的推广．     

The Study of KKM Theorems With Applications to Vector Equilibrium Problems and Implict Vector Variational Inequalities Problems

In this paper, we establish some equivalence relations between coincidence theorems and KKM-type theorems. We also obtain some new coincidence theorems and fixed point theorems. Applying the KKM-type theorems we obtain the existence theorems of generalized vector equilibrium problems. From these results, some existence theorems of generalized vector implicit variational inequality problems are established in this paper.     

Operator Ergodic Theorems for Actions of Free Semigroups and Groups

New ergodic theorems are obtained for measure-preserving actions of free semigroups and groups. These theorems are derived from ergodic theorems for Markov operators. This approach also allows one to obtain ergodic theorems for some classes of Markov semigroups. Results of the paper generalize classical ergodic theorems of Kakutani, Oseledets, and Guivarc'h, and recent ergodic theorems of Grigorchuk, Nevo, and Nevo and Stein.     

Fixed point theorems for better admissible multimaps on almost convex sets

We obtain new fixed point theorems on multimaps in the class Bp defined on almost convex subsets of topological vector spaces. Our main results are applied to deduce various fixed point theorems, coincidence theorems, almost fixed point theorems, intersection theorems, and minimax theorems. Consequently, our new results generalize well-known works of Kakutani, Fan, Browder, Himmelberg, Lassonde, and others.     

Applications of Michael's selection theorems to fixed point theory

Applying some of Ernest Michael's selection theorems, from recent fixed point theorems on u.s.c. multimaps, we deduce generalizations of the classical Bolzano theorem, several fixed point theorems on multimaps defined on almost convex sets, almost fixed point theorems, coincidence theorems, and collectively fixed point theorems. These results are related mainly to Michael maps, that is, l.s.c. multimaps having nonempty closed convex values.     

多元Stancu算子的Boolean和迭代

定义单纯形上高维Stancu算子的Boolean和迭代算子并且研究它逼近连续函数的正定理、逆定理与饱和定理，得到了较高的逼近阶．     

超凸空间中的连续选择定理与耦合定理

本文给出了超凸空间中的连续选择定理与耦合定理，并得到了它们的证明,作为应用，我们给出了超凸空间中的不动点定理与截口定理．     

Generalized KKM theorems on hyperconvex metric spaces and some applications

In this work, we establish the intersection property for a family of admissible subsets in a hyperconvex metric space, and we apply this intersection property to get generalized KKM theorems, coincidence theorems, variational inequality theorems and minimax inequality theorems.     

G-凸度量空间中的广义KKM定理及其应用

在一类新的G-凸度量空间中建立了一类新的KKM定理,统一、改进和发展了文献中的相应结果.作为应用,得到了几个新的匹配定理和不动点定理.     

Perturbation theorems for estimating magnitudes of roots of polynomials

Two additional new theorems are posed and proven to estimate the magnitudes of roots of polynomials. Perturbation theory and the order of magnitude of terms are employed to develop the theorems. The theorems may be useful to estimate the order of magnitudes of the roots of a polynomial a priori before solving the equation. The theorems are developed for two special classes of polynomials of arbitrary order with their coefficients satisfying certain conditions. Numerical applications of the theorems are presented as examples. It is shown that the theorems produce good estimates for the magnitudes of roots.     

奇数维spin~c流形和S~1作用(英文)

本文研究了奇数维spin~c流形上的等边指标定理.用这些指标定理和一些复分析的讨论,得到了两个奇数维spin~c流形上的Atiyah-Hirzebruch类型消灭定理,结果推广了刘-王的消灭定理.