关于Fuzzy拓扑线性空间的某些结果

本文给出了Ｆｕｚｚｙ拓扑线性空间的若干特征刻划，简化了判断Ｆｕｚｚｙ拓扑线性空间的条件，研究了Ｆｕｚｚｙ拓扑线性空间的层次结构，揭示了Ｆｕｚｚｙ拓扑线性空间与分明拓扑线性空间的内在联系，得到了Ｆｕｚｚｙ拓扑线性空间的“平移不变性”与“局部凸性”都是可截性质。     

映射系统中的零序列

设（Ｅ，ｒ）是局部凸拓扑向量空间，Ω是任意抽象集合，Ｆ∈Ｅ＾Ω，（ｘｊ）∈Ω是映射系统（Ω，Ｆ）中的零序列，即对每个ｆ∈Ｆ，（ｆ（ｘｊ））都是（Ｅ，τ）中收敛于０的序列，本文给出了序列（ｆ（ｘｊ））的Ｆ的子集Ｂ上一致收敛于０的刻划。     

LF拓扑线性空间上Fuzzy线性泛函的连续性

文（４）中给出了Ｘ（Ｌ）上的模糊线性算子的定义。作为其特例，本文证明了ＬＦ拓扑线性空间上模糊线性泛函连续性的几个等价命题和模糊线性泛函的Ｈａｈｎ－Ｂａｎａｃｈ延拓定理，进而给出了ＬＦ拓扑线性空间上存在非零连续模糊线性泛函的一个充要条件。     

集值映象的变分不等式

本文应用ＫｙＦａｎ定理和ＫＫＭ技巧在（局部凸）Ｈａｕｓｄｏｒｆｆ拓扑向量空间及自反Ｂａｎａｃｈ空间上讨论了集值映象的变分不等式解的存在性。所讨论的问题比［６，７，１０，１１］中讨论的更为广泛。     

集值映射向量优化的一个必要条件

本文在局部凸拓扑向量空间中得到了如下集值映射向量优化：ｍｉｎＦ（ｘ）ｓ．ｔ．Ｇ（ｘ）(（－Ｋ_１）,０∈Ｈ（ｘ）的必要条件即 Ｆｒｉｔｚ Ｊｏｈｎ条件．     

局部凸I-拓扑线性空间的若干性质

利用广义模糊半范数族来研究了Katsaras意义下的局部凸Ⅰ-拓扑线性空间的某些性质，如分离性、模糊点网的收敛性、模糊集的有界性，以及同一个集上两个局部凸Ⅰ-拓扑的“粗“细”比较等。     

F连续线性映象空间

本文采用（１）中给出的Ｆｕｚｚｙ拓扑线性空间的定义，并利用Ｆｕｚｚｙ拓扑线性空间的有关理论，对Ｆｕｚｚｙ连续线性映象空间作了较深入的研究。     

拓扑空间范畴,拓扑FUZZ范畴与拓扑分子格范略畴间的反射与余反射

从整体角度出发，证明拓扑空间范畴Ｔｏｐ分别是拓扑Ｆｕｚｚ范畴ＴｏｐＦｕｚｚ与拓扑分子格范畴ＴＭＬ的反射与余反射满子范畴，ＴｏｐＦｕｚｚｙ是ＴＭＬ的反射与余反射（非满）子范畴。     

Lax定理在局部凸空间中的推广

本文给出Ｌａｘ定理在局部凸空间中的几个推广，特别地，我们获得Ｌａｘ定理的如下推广：设Ｘ和Ｙ为自反Ｆｒｅｃｈｅｔ空间，其拓扑分别由半范序列ｑ１≤ｑ２≤…和半范序列ｐ１≤Ｐ２≤…所给出．设Ａ：Ｙ→Ｘ′为连续线性算子，则存在连续线性算子Ｇ：Ｙ′→Ｘ使满足：（Ｇｇ，Ａｙ）＝（ｇ，ｙ），ｇ∈Ｙ′，Ｖ∈Ｙ当且仅当：对于ｎ，存在ｃｎ＞０，使ｓｕｐ｛１（Ａｙ，ｘ）｜：ｑｎ（ｘ）≤１｝≤ｃｎｐｍ．（ｙ），ｙ∈Ｙ且Ａ的值域在互Ｘ′中具拓扑补，这里，Ｘ′和Ｙ′分别记Ｘ和Ｙ的强对偶．     

关于Z映射与局部连通空间的几个定理

关于Ｚ映射与局部连通空间的几个定理曹尚民（聊城师范学院，２５２０５９）定义１设Ｘ，Ｙ为拓扑空间，若ｆ：Ｘ→Ｙ对于Ｙ的任一开集Ｖ有ｆ（Ｉｎｔ（ｆ￣（－１）（ｖ）））＝ｖ，则称ｆ为ｚ映射。定义２拓扑空间ｘ的子集Ａ称为Ｐｒｅ－ｏｐｅｎ集，若和ｃ１分别是集合...     

Fuzzy topological vector spaces I

Some of the properties of fuzzy topological vector spaces are investigated. Also, there are given necessary and sufficient conditions for a family of fuzzy sets, in a vector space E, to be the family of all neighborhoods of zero for a fuzzy linear topology.     

L—不分明拓扑空间的Alexandorff紧化

给出了一般的Ｌ－不分明拓扑空间的Ａｌｅｘａｎｄｏｒｆｆ紧化，并且对弱诱导空间证明了该紧化是弱诱导紧化类中唯一最小的紧化。     

Lower and upper fuzzy topological subhypergroups

This paper provides a new connection between algebraic hyperstructures and fuzzy sets. More specifically, using both properties of fuzzy topological spaces and those of fuzzy subhypergroups, we define the notions of lower (upper) fuzzy topological subhypergroups of a hypergroup endowed with a fuzzy topology. Some results concerning the image and the inverse image of a lower (upper) topological subhypergroup under a very good homomorphism of hypergroups (endowed with fuzzy topologies) are pointed out.     

一类集值映射的向量均衡问题

在拓扑向量空间内,研究了一类新的集值映射的广义向量均衡问题,利用KKM定理,证明了解的几个存在性定理,并讨论了解的性状.所得结果推广了近期一些作者的研究成果.     

Topological vector spaces, compacta, and unions of subspaces

In the first two sections, we study when a σ-compact space can be covered by a point-finite family of compacta. The main result in this direction concerns topological vector spaces. Theorem 2.4 implies that if such a space L admits a countable point-finite cover by compacta, then L has a countable network. It follows that if f is a continuous mapping of a σ-compact locally compact space X onto a topological vector space L, and fibers of f are compact, then L is a σ-compact space with a countable network (Theorem 2.10). Therefore, certain σ-compact topological vector spaces do not have a stronger σ-compact locally compact topology.In the last, third section, we establish a result going in the orthogonal direction: if a compact Hausdorff space X is the union of two subspaces which are homeomorphic to topological vector spaces, then X is metrizable (Corollary 3.2).     

On the determination of fuzzy topological spaces and fuzzy neighbourhood spaces by their level-topologies

In this paper we discuss the problem of the reconstruction of a fuzzy topological space or a fuzzy neighbourhood space from an a priori given family of level-topologies. Necessary and sufficient conditions for the existence of a solution are given, and it is proved that in the particular case of fuzzy neighbourhood spaces this solution is always unique.     

On concretely both reflective and coreflective subconstructs of Chang fuzzy topological spaces

In this paper, the concretely both reflective and coreflective subconstructs of the construct CFTS of Chang fuzzy topological spaces are characterized and their relationship to such subconstructs of stratified fuzzy topological spaces is investigated. Properties of a particular such subconstruct of CFTS, the construct of weak fuzzy neighborhood spaces, are discussed in detail. And it is proved that there exists exactly c such subconstructs between the subconstruct of weakly induced spaces and CFTS.