Diestel-Faires定理在局部凸空间中的推广

通过Banach 空间与局部凸空间的对比,将Banach 空间上的Diestel-Faires 定理在局部凸空间上进行推广。进一步给出了局部凸空间上的Orlicz-Pettis定理与推论。     

局部凸H-空间中的Fan-Ha型截口定理及应用

首先在局部凸H-空间中,建立了新的Fan-Ha型截口定理及一些相应的等价形式.作为应用,我们在H-空间中研究极大极小定理,本文中的定理把已有文献中的相应结果改进和推广到H-空间.     

Vitali-Hahn-Saks-Nikodym定理在局部凸空间上的推广

把Banach空间上向量测度理论中的Vitali-Hahn-Saks-Nikodym定理推广到了更一般的局部凸空间上.进而给出局部凸空间上强可加向量测度列与一致强可加测度列的关系.     

局部凸空间中一类非线性Volterra型积分方程解的存在性

首先利用局部凸空间非紧性测度得到一个新的不动点定理;并运用此定理研究了局部凸空间非线性V o lterra型积分方程解的存在性,然后应用到弱拓扑结构下对非线性V o lterra型积分方程解的存在性的讨论.推广了原有文献的结果.     

局部凸空间中集值K-映像的Rothe定理和Browder-Potter定理

本文推广了赋范空间中单值连续映像的Rothe定理和Browder-Potter定理到局部凸空间中集值K-映像的情形。     

几乎凸多值映射的逼近选择及对平衡存在性与不动点定理的应用

在局部凸拓扑向量空间中确立了新的非空几乎凸几乎下半连续多值映射的逼近选择定理.作为应用,我们还给出了一个平衡存在性定理及不动点定理.这些结果推广和改进了文献中已有的相关结论.     

局部凸Hausdorff空间内凝聚选择映象的极大元

在本文内,局部凸Hausdorff空间中凝聚选择映象极大元的两个存在性定理被证明,推广Mehta的最近结果.其中一个定理肯定地解答了Mehta提出的待解决的问题.     

局部凸空间的K强凸性与K强光滑性

首先引进了局部凸空间K强凸性的概念,它既是Banach空间K强凸性概念在局部凸空间中的推广,又是局部凸空间强凸性概念的自然推广;其次给出了局部凸空间K强凸性概念的对偶概念,即局部凸空间K强光滑性的概念,并得到了K强凸(K强光滑)的局部凸空间的特征刻画;最后,在P-自反的条件下给出了它们之间的对偶定理,即(X,TP)是K强凸(K强光滑)的当且仅当(X′,TP′)是K强光滑(K强凸)的.     

局部凸H-空间中的Ky Fan型截口定理及其应用

本文首先在局部凸Ｈ－空间中建立一个Ｆａｎ型截口定理,作为应用,我们Ｈ－在空间中获得了相交定理、重合定理和极大极小定理本文中定理把文献中的相应结果改进和推广到Ｈ－空间。     

局部凸空间中的Drop定理,Phelps引理和Ekeland变分原理的推广

在局部凸空间框架下,我们利用Drop定理,Phelps引理和Ekeland变分原理的赋范线性空间的形式对其分别进行了推广.并且阐述了这些定理之间以及和它们赋范线性空间的形式之间是等价的.     

Interpolation of Operators on Scales of Generalized Lorentz-Zygmund Spaces

We define generalized Lorentz-Zygmund spaces and obtain interpolation theorems for quasilinear operators on such spaces, using weighted Hardy inequalities. In the limiting cases of interpolation, we discover certain scaling property of these spaces and use it to obtain fine interpolation theorems in which the source is a sum of spaces and the target is an intersection of spaces. This yields a considerable improvement of the known results which we demonstrate with examples. We prove sharpness of the interpolation theorems by showing that the constraints on parameters are necessary for the interpolation theorems.     

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．     

KKM TYPE THEOREMS AND COINCIDENCE THEOREMS ON L-CONVEX SPACES

Some KKM theorems and coincidence theorems involving admissible set-valued mappings and the set-valued mappings with compactly local intersection property are proved in L-convex spaces. As applications, some new fixed point theorems are obtained in L-convex spaces. These theorems improve and generalize many important known results in recent literature.     

Preference orders and continuous representations

In this paper we prove some general theorems on the existence of continuous order-preserving functions on topological spaces with a continuous preorder. We use the concepts of network and netweight to prove new continuous representation theorems and we establish our main results for topological spaces that are countable unions of subspaces. Some results in the literature on path-connected, locally connected and separably connected spaces are shown to be consequences of the general theorems proved in the paper. Finally, we prove a continuous representation theorem for hereditarily separable spaces.     

度量空间和锥度量空间中的若干不动点定理

给出了度量空间和锥度量空间中的若干不动点定理.利用这些不动点定理,统一并推广了度量空间和锥度量空间中的若干经典的不动点定理.     

DECOMPOSITION FOR BERS-ORLICZ SPACES

ＤＥＣＯＭＰＯＳＩＴＩＯＮＦＯＲＢＥＲＳ－ＯＲＬＩＣＺＳＰＡＣＥＳＺｈａｏＲｕｈａｎ（赵如汉）（ＷｕｈａｎＩｕｓｔ．ｏｆＭａｔｈ．Ｓｃｉ．，ＡｃａｄｒｍｉａＳｉｎｄａ．，Ｗｕｈａｎ４３００７１，Ｃｈｉｎａ．）ＤＥＣＯＭＰＯＳＩＴＩＯＮＦＯＲＢＥＲＳ－...     

Interpolation for martingale Hardy spaces over weighted measure spaces

Several interpolation theorems on martingale Hardy spaces over weighted measure spaces are given. Our proofs are based on the atomic decomposition of martingale Hardy spaces over weighted measure spaces. As applications of interpolation theorems, some inequalities of martingale transform operator are obtained.     

Interpolation theorems on weighted Lorentz martingale spaces

In this paper several interpolation theorems on martingale Lorentz spaces are given.The proofs are based on the atomic decompositions of martingale Hardy spaces over weighted measure spaces.Applying the interpolation theorems,we obtain some inequalities on martingale transform operator.     

Fixed point theorems for operators on partial metric spaces

Fixed point theorems for operators of a certain type on partial metric spaces are given. Orbitally continuous operators on partial metric spaces and orbitally complete partial metric spaces are defined, and fixed point theorems for these operators are given.     

广义凸空间内的拟平衡问题和约束多目标对策

在没有线性结构的广义凸空间内研究了一类拟平衡问题和一类约束多目标对策.首先在非紧广义凸空间内对拟平衡问题证明了两个解的存在性定理.然后作为拟平衡存在定理的应用,在广义凸空间内对约束多目标对策建立了几个加权Nash-平衡和帕雷多平衡存在定理.这些定理改进、统一和推广了最近文献中多目标对策的相应结果.