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1.
Fibrewise topological spaces theory,presented in the recent 20 years,is a new branch of mathematics developed on the basis of General Topology,Algebra topology and Fibrewise spaces theory.It is associated with differential geometry,Lie groups and dynamical systems theory.From the perspective of Category theory,it is in the higher category of general topological space,so the discussion of new properties and characteristics of the variety of fibre topological space has more important significance.This paper introduces the process of the origin and development of Fibrewise topological spaces theory.Then,we study the main contents and important results in this branch.Finally,we review the research status of Fibrewise topological spaces theory and some important topics.  相似文献   

2.
We develop a theory for probabilistic semiuniform convergence spaces. Probabilistic semiuniform convergence spaces generalize probabilistic uniform spaces in the sense of Florescu and probabilistic convergence spaces in the sense of Kent and Richardson. This theory includes a new branch in topology, namely, Convenient Topology, introduced by Preuß. Thus, it includes semiuniform convergence spaces and uniform spaces, filter and Cauchy spaces and (symmetric) limit spaces and, therefore, (symmetric) topological spaces. The theory of probabilistic semiuniform convergence spaces reveals categories which are strong topological universes or have other convenient properties.  相似文献   

3.
We introduce and study almost compactness for fuzzy topological spaces. We show that the almost continuous image of an almost compact fuzzy topological space is almost compact. Moreover, we show that generally almost compactness for fuzzy topological spaces is not product-invariant, but if X and Y are almost fuzzy topological spaces and X is product related to Y, then their fuzzy topological product is almost compact.  相似文献   

4.
丘京辉 《数学杂志》2005,25(4):389-393
本文研究有序拓扑向量空间中非线性映照的共鸣定理.对于取值于有序拓扑向量空间中的映照,利用序关系,引入了一类广泛的非线性映照.对于这类非线性映照,应用纲理论,并给出了关于点态序有界蕴涵一致序有界的共鸣定理.  相似文献   

5.
《数学季刊》2016,(4):430-434
It is proved in this paper that (1) the topological sum of a family of supercomplete spaces is supercomplete; (2) if X is a metacompact and almost locally compact space then X is supercomplete. Moreover, some questions on supercomplete spaces are posed in the paper.  相似文献   

6.
FUZZY PRETOPOLOGICAL SPACES, AN EXTENSIONAL TOPOLOGICAL EXTENSION OF FTS   总被引:1,自引:0,他引:1  
O.Introduction'ByacrazytopologyonasetXwemeanasubsetofixwhichisclosedunderfiniteintersections,arbitraryulilonsandcolltainsalltheconstantfuZzysets.ItiswellknownthatthecategoryFTSoffuzzytopologicalspacesisawell--fibredtopologicalconstruct,andsinceitcoDtainsthecategoryTopasabothreflectiveandcoreflectivesubcategory)likeTOP,thiscategorylacksmanyconvenientpropertiessuchasextensionality(fordefinitionsee[6]or4.1inthispaper),cartesianclosednessandbeingatopologicaluniverse(see[1,6]fordefinitons).SoH…  相似文献   

7.
贺飞 《数学学报》2008,51(2):343-350
给出了拓扑线性空间中的一个Drop定理.利用此Drop定理,证明了拓扑线性空间中的每个序列紧凸集具有Drop性质;每个可数紧闭凸集具有拟Drop性质.而且结出了拓扑线性空间中Drop性质和拟Drop性质的序列流特征.也讨论了Drop性质和拟Drop性质与泛函取极值之间的联系.  相似文献   

8.
In the paper [Monotone countable paracompactness and maps to ordered topological vector spaces, Top. Appl., 2014, 169(3): 51–70], Yamazaki initiated the study on maps with values into ordered topological vector spaces. Characterizations of monotonically countably paracompact spaces and some other spaces in terms of maps to ordered topological vector spaces were obtained. In this paper, following Yamazaki's method, we present some characterizations of stratifiable spaces and k-semi-stratifiable spaces in terms of maps with values into ordered topological vector spaces.  相似文献   

9.
Bennett  Harold  Lutzer  David  Rudin  Mary Ellen 《Order》2002,19(4):367-384
In this paper we examine the interactions between the topology of certain linearly ordered topological spaces (LOTS) and the properties of trees in whose branch spaces they embed. As one example of the interaction between ordered spaces and trees, we characterize hereditary ultraparacompactness in a LOTS (or GO-space) X in terms of the possibility of embedding the space X in the branch space of a certain kind of tree.  相似文献   

10.
In this paper we study the 2-dimension of a finite poset from the topological point of view. We use homotopy theory of finite topological spaces and the concept of a beat point to improve the classical results on 2-dimension, giving a more complete answer to the problem of all possible 2-dimensions of an n-point poset.   相似文献   

11.
We construct a potential theory for differential forms on compact stratified spaces, and we show that the space of harmonic forms of degree k is isomorphic to the singular cohomology of degree k. This theory applies to any triangulable topological space.  相似文献   

12.
Finite topological spaces, that is spaces with a finite number of points, have a wide range of applications in many areas such as computer graphics and image analysis. In this paper we study the covering dimension of a finite topological space. In particular, we give an algorithm for computing the covering dimension of a finite topological space using matrix algebra.  相似文献   

13.
We establish some upper and lower bounds of the rational topological complexity for certain classes of elliptic spaces. Our techniques permit us in particular to show that the rational topological complexity coincides with the dimension of the rational homotopy for some special families of coformal elliptic spaces.  相似文献   

14.
《Optimization》2012,61(4):497-513
This paper deals with necessary conditions for optimization problems with infinitely many inequality constraints assuming various differentiability conditions. By introducing a second topology N on a topological vector space we define generalized versions of differentiability and tangential cones. Different choices of N lead to Gâteaux-, Hadamaed- and weak differentiability with corresponding tangential cones. The general concept is used to derive necessary conditions for local optimal points in form of inequalities and generalized multiplier rules, Special versions of these theorems are obtained for different differentiability assumptions by choosing properly. An application to approximation theory is given.  相似文献   

15.
Scalarization method is an important tool in the study of vector optimization as corresponding solutions of vector optimization problems can be found by solving scalar optimization problems. Recently this has been applied by Du (2010) [14] to investigate the equivalence of vectorial versions of fixed point theorems of contractive mappings in generalized cone metric spaces and scalar versions of fixed point theorems in general metric spaces in usual sense. In this paper, we find out that the topology induced by topological vector space valued cone metric coincides with the topology induced by the metric obtained via a nonlinear scalarization function, i.e any topological vector space valued cone metric space is metrizable, prove a completion theorem, and also obtain some more results in topological vector space valued cone normed spaces.  相似文献   

16.
The category of Scott‐domains gives a computability theory for possibly uncountable topological spaces, via representations. In particular, every separable Banach‐space is representable over a separable domain. A large class of topological spaces, including all Banach‐spaces, is representable by domains, and in domain theory, there is a well‐understood notion of parametrizations over a domain. We explore the link with parameter‐dependent collections of spaces in e. g. functional analysis through a case study of ?p ‐spaces. We show that a well‐known domain representation of ?p as a metric space can be made uniform in the sense of parametrizations of domains. The uniform representations admit lifting of continuous functions and are effective in p. Dependent type constructions apply, and through the study of the sum and product spaces, we clarify the notions of uniformity and uniform computability. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)  相似文献   

17.
L─fts中的导集和导算子   总被引:1,自引:0,他引:1  
本文首先讨论了L─fts中LF集的聚点的分布;其次讨论了LF集的导集的一些性质,并给出了一般的L─fts中类似于杨忠道定理的结果;本文最后引进了导算子的概念,并用其刻划一般的L─fts.  相似文献   

18.
在MengerPN空间中构造新的边界条件,采用新的技巧,通过拓扑度理论给出几类非线性算子方程解的存在性定理,改进了以往若干结论,并将所得的结果应用到一类特殊的函数方程中.  相似文献   

19.
本文给出了值域空间为有序拓扑向量空间的准齐性算子族的几个共鸣定理.  相似文献   

20.
给出了L-fuzzy拓扑空间中L-fuzzyα-开运算的定义.然后借助L-fuzzyα-开运算给出L-fuzzy拓扑空间中L-fuzzyα-紧的定义;其次给出L-拓扑空间中开覆盖及fuzzyα-紧的定义;并分别得到了一些相关性质;最后讨论了L-fuzzy拓扑空间中L-fuzzyα-紧与L-拓扑空间中fuzzyα-紧之间的关系.  相似文献   

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