About Moore—Smith Convergence on l^＊—Module

§１．　ＩｎｔｒｏｄｕｃｔｉｏｎＩｎ１９９５，Ｍｒ．ＸｕＹａｎｇ，ｉｎｈｉｓｄｏｃｔｏｒａｌｄｉｓｓｅｒｔａｔｉｏｎ［１］，ｆｉｒｓｔｉｎｔｒｏｄｕｃｅｄａｄｏｕｂｌｅｌａｔｔｉｃｅ－ｏｒ－ｄｅｒｅｄａｌｇｅｂｒａｉｃｓｔｒｕｃｔｕｒｅｃａｌｌｅｄｌ－ｍｏｄｕｌｅａｎｄｄｉｓｃｕｓｓｅｄｉｔｓａｌｇｅｂｒａｉｃａｎｄａｎａｌｙｔｉｃａｌｐｒｏｐｅｒｔｉｅｓ，ｂｙｗｈｉｃｈｈｅｄｅａｌｔｗｉｔｈｔｈｅｐｒｏｂｌｅｍｏｆｌａｔｔｉｃｅ－ｖａｌｕｅｄｇａｍｅａｎｄｓｅｔｕｐｔｈｅｅｌｅｍｅｎｔａｌｔ…     

Completely Positive Definite Maps Over Topological^＊—algebras

ＣｏｍｐｌｅｔｅｌｙＰｏｓｉｔｉｖｅＤｅｆｉｎｉｔｅＭａｐｓＯｖｅｒＴｏｐｏｌｏｇｉｃａｌ－ａｌｇｅｂｒａｓＸｕＴｉａｎｚｈｏｕ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａｔｈｅｍａｔｉｃｓ，ＢｅｉｊｉｎｇＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｆｏｇｙ，...     

诱导的L—fuzzy拓扑空间的a—结构

本文研究Ｌ－ｆｕｚｚｙ拓扑空间的一类几乎开Ｌ－ｆｕｚｚｙ集的性质,在Ｌ－ｆｕｚｚｙ拓扑空间中引入了ａ－结构的概念,证明了由一般拓扑空间（Ｘ,Ｆ）诱导的Ｌ－ｆｕｚｚｙ拓扑空间（Ｌ＾Ｘ,ＷＬ（Ｔ））的ａ－结构必是Ｌ＾Ｘ上的Ｌ－ｆｕｚｚｙ拓扑,并且指出这个拓扑就是由一般拓扑空间（Ｘ,Ｔ）的ａ－结构诱导的,此外,本文还给出了与诱导的Ｌ－ｆｕｚｚｙ拓扑空间的ａ－结构相关的若干性质。     

Complete Positivity of Elementary Operators on C^＊—algebras

1.IntroductionandPreliminariesInthispaper,AdenotesaC'-algebra.AnelementaryoperatoronAisamappingoftheformE:x-Zaixbi,whereaiandbiarefixedelementsofA.AnidempotenteinAiscalledi-lminimal,ifeAe=Ce.ThesocleofA,soc(A)isdefinedtobethetwo-sidedidealgeneratedbyallminimalidempotentsinAoroiftherearenone.AissaidtObeprimeifxAy=Oimpliesx=oory=oforallx,yinA.Aiscalledprimitiveifithasafaithfulirreduciblerepresenta-tion.LetAandBbeC'-algebras,alinearmap@:A-Biscalledpositiveifdi(a)ispositiveforallPositiv…     

The U—property of Orlicz Sequence Spaces

LetXbeaBanachspace,X'bethedualofX,S(X)={xeX:IIxII=l},B(X)={x6X:llxIlS1}betheunitsphereandunitballofX,respectively.ForxeX,let7xdenotethesetofsupportingfunctionalsfofS(X.)atx.Inl978,LauKa-singintroducedthefollowingnotiontostudytheChebyshevsubsetofX[1j:DefinitionABanachspaceXissaidtohaveU-propertyifforanyE>O,thereexists3>osuchthatSomeoftheresultsofU-propertyin[ljaresummarizedinthefollowing.Theorem(I)IfXhasU-property,thenXisuniformlynonSquare,inparticular,Xissuper-reflexive(infactr…     

K—Bounded Sets and A—Spaces

Let(E,T)bealocallyconvexspace,asequence{xi}inEissaidtobeT-Kconvergentifeverysubsequenceof{xi}hasasubsequence{xik}suchthattheseries∑kxikisT-convergenttoanelementx∈E([1]).NotethatasequencewhichisT-KconvergentmustbeT-con-vergentto0.But,ingeneral,itisnotconversely.ThesetA(E,T)issaidtobeT-Kboundedsetifwhenever{xi}Aand{ti}isasequenceofpositivescalarswhichconvergesto0,then{tixi}isT-Kconvergent([1]).ItisclearthataT-KboundedsetisalwaysT-boundedsetbutnotconversely.ThenotionsofK-convergentand…     

The Non—standard Characteristics of Functional Spaces K（X） and C0（X）

ＬｅｔＵｂｅａｓｔａｎｄａｒｄｕｎｉｖｅｒｓｅａｎｄＵｂｅａｎｅｎｌａｒｇｅｄｎｏｎｓｔａｎｄａｒｄｕｎｉｖｅｒｓｅｗｉｔｈｒｅｓｐｅｃｔｔｏＵ．ＸｉｓａｔｏｐｏｌｏｇｉｃａｌｓｐａｃｅｗｈｉｃｈｉｎｃｌｕｄｅｄｉｎｔｈｅｉｎｄｉｖｉｄｕａｌｓｅｔｏｆＵ，ｔｈａｔｉｓ，ＸＸ．Ｄｅｆｉｎｉｔｉｏｎ１　Ｆｏｒｅａｃｈｘ∈Ｘ，ｗｅｄｅｆｉｎｅｍ（ｘ）＝∩｛Ｖ：Ｖ∈Ｉｘ｝ａｎｄｃａｌｌｍ（ｘ）ｔｈｅｍｏｎａｄｏｆｘ（Ｉｘｉｓｔｈｅｏｐｅｎｎｅｉｇｈｂｏｒｈｏｏｄｏｆｘ）．Ｗｅｗｒｉｔｅｙ≈ｘｆｏ…     

关于分层空间度量化的一个问题

利用g-函数研究广义度量空间和度量化,统一了近年来许多有趣的工作.本文回答了[2]中提出的一个问题.所讨论的拓扑空间是正则的.     

cut* 空间的拓扑性质

该文引入了 cut^*空间的概念,所谓的 cut^*空间是指去掉任意一点连通,去掉任意两点不连通的连通空间.通过对其性质的讨论,得到如下主要结论: 首先得到cut^*空间中每个点非开即闭,并且cut^*空间中有无限多个闭点;其次讨论了一类特殊的 cut^*空间,即去掉一点是COTS的 cut^* 空间.指出``$X$是 cut^*空间,任意 $x\inX,X\setminus\{x\}$是不可约cut空间'这样的空间类是不存在的.在文章的最后,讨论了去掉一点是LOTS的 cut^*空间的覆盖性质,得到这样的空间是紧空间或Lindel\"of空间的结论.     

I-Fuzzy拓扑空间中的基与子基

本文给出了I-fuzzy拓扑空间中基与子基的合理定义,对连续映射和开映射进行了刻画。此外,文中界定了乘积空间中基与子基并研究了乘积空间与因子空间的关系。     

直觉I-fuzzy拓扑空间的基与子基

给出了直觉I-fuzzy拓扑空间的基与子基,并利用它研究了模糊连续和模糊开函数.我们还给出了直觉I-fuzzy拓扑空间的乘积空间的定义,并研究了乘积空间与因子空间的关系.     

关于模糊拓扑环的模糊度量化

本文引入了模糊拓扑环可广义模糊度量化 ,可模糊伪度量化及可模糊度量化三个概念 ;并分别得到了模糊拓扑环可广义模糊度量化 ,可模糊伪度量化及可模糊度量化的三个充分必要条件     

Simple C*-Algebras with Unique Tracial States and Quantized Topological Spaces

Let X be a connected finite CW complex and d _X : K ₀(C(X)) →ℤ be the dimension function. We show that, if A is a unital separable simple nuclear C*-algebra of TR(A) = 0 with the unique tracial state and satisfying the UCT such that K ₀(A) = ℚ⊕ kerd _x and K ₁(A) = K ₁(C(X)), then A is isomorphic to an inductive limit of M _{n !}(C(X)). Received April 19, 2001, Accepted April 27, 2001.     

Topological Spaces with Skorokhod Representation Property

We give a survey of recent results that generalize and develop a classical theorem of Skorokhod on representation of weakly convergent sequences of probability measures by almost everywhere convergent sequences of mappings. __________ Published in Ukrains'kyi Matematychnyi Zhurnal, Vol. 57, No. 9, pp. 1171–1186, September, 2005.     

Topological algebras with maximal regular ideals closed

It is shown that all maximal regular ideals in a Hausdorff topological algebra A are closed if the von Neumann bornology of A has a pseudo-basis which consists of idempotent and completant absolutely pseudoconvex sets. Moreover, all ideals in a unital commutative sequentially Mackey complete Hausdorff topological algebra A with jointly continuous multiplication and bounded elements are closed if the von Neumann bornology of A is idempotently pseudoconvex.     

K-Convergent Sequences in Topological Vector Spaces with a Basis

Ｋ┐ＣｏｎｖｅｒｇｅｎｔＳｅｑｕｅｎｃｅｓｉｎＴｏｐｏｌｏｇｉｃａｌＶｅｃｔｏｒＳｐａｃｅｓｗｉｔｈａＢａｓｉｓ＊）ＷｕＪｕｎｄｅ（武俊德）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＤａｑｉｎｇＰｅｔｒｏｌｅｕｍＩｎｓｔｉｔｕｔｅ，Ａｎｄａ，...     

Order Environments of Topological Spaces

In this paper it is proved that a space may be realized as the set of the maximal elements in a continuous poset if and only if it is Tychonoff.