L-拓扑空间的弱局部强F紧性及单点强F紧化

以R.Lowen的强F紧性为基础,定义了L-拓扑空间的弱局部强F紧性及单点强F紧化,推广了有关弱局部紧拓扑空间和拓扑空间的单点紧化的若干结果,证明了L-拓扑空间的弱局部强F紧性是拓扑空间的弱局部紧性的L-推广。     

仿紧局部紧空间的映象

本文借助于闭映射、伪开映射和商映射建立仿紧局部紧空间和几类具有某些特定性质 k 系空间之间的联系。     

局部有限超拓扑的局部紧性

本文讨论了赋予局部有限拓扑的非空闲子集超空间的局部紧性.主要结果是:X正则,则其闭子集超空间局部紧当且仅当X可表示成一个紧空间与一个离散空间的拓扑和.     

强S-仿紧空间

在一般拓扑空间中给出了强S-仿紧空间的概念,研究了它的性质并给出了Hausdorff空间下它的等价刻画,同时讨论了它的相对性质.     

紧局部完全ω凸空间

本文引入紧完全ω凸空间（ＣωＲ）和紧局部完全ω凸空间（ＣＬωＲ）概念，得到如下结果：若Ｘ是ＣＬωＲ，则Ｘ有（Ｋ）性质；若Ｘ＾＊是ＣＬωＲ，则Ｘ＾＊有（＊＊）性质。     

代数L-domain和强core紧空间的刻画

给出代数L-domain和强core紧空间以及连续L-domain和core紧空间的刻画。     

局部可分度量空间的紧复盖紧映象

给出了局部可分度量空间紧复盖紧映象的刻画。     

局部F紧性是L—好的推广

在文[9]中,作者提出了六种局部F紧性。即定义1 设(L~*,δ)是L-Fuzzy拓扑空间,对任意x_α∈M~※(L~×),设A∈N(x_α),B∈η(x_α)。这里N(x_α)是x_α的全体邻域之集。     

关于局部紧空间的闭Lindelof映象

本文给出了两类局部紧空间闭Ｌ（Ｌｉｎｄｅｌｏｆ）映象的内部特征,证明了空间Ｘ是仿紧局部紧空间的闭Ｌ映象当且发Ｘ是具有σ－局部有限ｋ系的ｋ空间,由此得到在ｋ′空间类中,偏紧局部紧空间的闭Ｌ映象等价于偏紧局部紧空间的商ＳＬＪ央象,同时不证明了空间Ｘ是局部紧度量空间的闭Ｌ映象当且Ｘ是具有σ－局部有限紧ｋ网的Ｆｒｅｃｈｅｔ空间。     

Locally Compact Path Spaces

It is shown that the space X^[0,1], of continuous maps [0,1]X with the compact-open topology, is not locally compact for any space X having a nonconstant path of closed points. For a T₁-space X, it follows that X^[0,1] is locally compact if and only if X is locally compact and totally path-disconnected. Mathematics Subject Classifications (2000) 54C35, 54E45, 55P35, 18B30, 18D15.     

The Sequence-covering Compact Images of Paracompact Locally Compact Spaces

Ｉｎｔｈｉｓｐａｐｅｒ,ａｌｌｓｐａｃｅｓａｒｅｒｅｇｕｌａｒａｎｄＴ1,ａｎｄａｌｌｍａｐｐｉｎｇｓａｒｅｃｏｎｔｉｎｕｏｕｓａｎｄｏｎｔｏ .Ｒｅａｄｅｒｓｍａｙｒｅｆｅｒｔｏ [1 ]ｆｏｒｕｎｓｔａｔｅｄｄｅｆｉｎｉｔｉｏｎｓ.　Ｑｕｉｔｅｒｅｃｅｎｔｌｙ ,ｓｏｍｅｃｈａｒａｃｔｅｒｉｚａｔｉｏｎｓｆｏｒｃｅｒｔａｉｎＬ ｉｍａｇｅｓｏｆｐａｒａｃｏｍｐａｃｔｌｏｃａｌｌｙｃｏｍｐａｃｔｓｐａｃｅｓｈａｖｅｂｅｅｎｏｂｔａｉｎｅｄｉｎ [2 ] .Ｓｉｍｉｌａｒｌｙ ,ｗｅｃａｎｅｓｔａｂｌｉｓｈｔｈｅｃｈ…     

Priestley Spaces, Quasi-hyperalgebraic Lattices and Smyth Powerdomains

We introduce the concept of quasi-hyperalgebraic lattice and prove that a complete lattice is a Priestley space with respect to the interval topology if and only if it is quasi-hyperalgebraic. Some characterizations of quasi-hyperalgebraic lattices are presented. We also prove that the Smyth powerdomain of a quasi-hyperalgebraic lattice is hyperalgebraic.     

On Uniformly Locally Compact Quasi-Uniform Hyperspaces

We characterize those Tychonoff quasi-uniform spaces for which the Hausdorff-Bourbaki quasi-uniformity is uniformly locally compact on the family of nonempty compact subsets of X. We deduce, among other results, that the Hausdorff-Bourbaki quasi-uniformity of the locally finite quasi-uniformity of a Tychonoff space Xis uniformly locally compact on if and only if Xis paracompact and locally compact. We also introduce the notion of a co-uniformly locally compact quasi-uniform space and show that a Hausdorff topological space is -compact if and only if its (lower) semi-continuous quasi-uniformity is co-uniformly locally compact. A characterization of those Hausdorff quasi-uniform spaces for which the Hausdorff-Bourbaki quasi-uniformity is co-uniformly locally compact on is obtained.     

Topological Representations of Distributive Hypercontinuous Lattices

The concept of locally strong compactness on domains is generalized to general topological spaces. It is proved that for each distributive hypercontinuous lattice L, the space SpecL of nonunit prime elements endowed with the hull-kernel topology is locally strongly compact, and for each locally strongly compact space X, the complete lattice of all open sets O（X） is distributive hypercontinuous. For the case of distributive hyperalgebraic lattices, the similar result is given. For a sober space X, it is shown that there is an order reversing isomorphism between the set of upper-open filters of the lattice O（X） of open subsets of X and the set of strongly compact saturated subsets of X, which is analogous to the well-known Hofmann-Mislove Theorem.     

基本的局部实心Riesz空间

In this paper we focus ourselves on the positive cone of the locally solid Riesz spaces to characterize the fundamentality.From one example the article indicates that the fundamentality of the locally solid Riesz space is independent from the Lebesgue property.     

关于局部紧域的加法特征的一点注记

In this note, we give an elementary and constructive proof for that the additive character group of a locally compact field is isomorphic to itself as an additive topological group.     

Equicontinuous Seton Locally Convex Spaces

Ｌｅｔ（Ｅ，γ）ｂｅａｌｏｃａｌｌｙｃｏｎｖｅｘｓｐａｃｅａｎｄＥ′ｉｔｓｃｏｎｊｕｇａｔｅｓｐａｃｅ．ＡＥ′ｂｅａｎｅｑｕｉｃｏｎｔｉｎｕ－ｏｕｓｓｅｔｏｎ（Ｅ，γ）．ＴｈｅｗｅｌｌｋｎｏｗｎＡｌａｏｇｌｕ－ＢｏｕｒｂａｋｉＴｈｅｏｒｅｍ（［１］Ｐ２４８）ｓｔａｔｅｓｔｈａｔｅａｃｈｅ－ｑｕｉｃｏｎｔｉｎｕｏｕｓｓｅｔｏｎ（Ｅ，γ）ｉｓσ（Ｅ′，Ｅ）ｒｅｌａｔｉｖｅｌｙｃｏｍｐａｃｔｓｕｂｓｅｔ．Ｎｅｖｅｒｔｈｅｌｅｓｓ，ｅｑｕｉｃｏｎｔｉｎｕｏｕｓｓｅｔｉｓσ（Ｅ′，Ｅ）ｒｅｌａｔｉｖｅｌ…     

局部可分度量空间的序列覆盖局部可数象

本文给出了局部可分度量空间的序列复盖局部可数象的刻画。     

某些局部凸空间上相对弱紧集，相对弱列紧集，相对弱可数紧集的关系

对可分离的局部凸空间（Ｘ，τ），本文建立了相应的局部凸空间（Ｑｘ，Ｔｘ），利用它证明了当（Ｘ，τ）满足某些条件时（赋范空间满足这些条件），ＥＸ相对弱紧Ｅ相对弱列紧Ｅ相对弱可数紧，从而推广了Ｅｂｅｒｌｅｉｎ等人的工作，证明了在空间Ｄ（Ｒ￣ｎ），（Ｒ￣ｎ）和Ｄ＿（ＬＰ），１＜ｐ＜∞上前述三种弱紧性等价．