共查询到18条相似文献,搜索用时 62 毫秒
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设(E,ζ)=indlim(En,ζn)为局部凸空间的诱导极限.称(DST)成立若(E,ζ)中每个有界集含于且有界于某(En,ζn).引进一种弱于速完备性的性质,叫做拟速完备性,并证明了对于严格网状空间的诱导极限,拟速完备性蕴涵(DST).利用DeWilde的理论,也给出了关于(DST)的其他条件.这些结果改进了已有的有关结论 相似文献
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本文通过在局部凸空间上引入新拓扑的方法,给出某种特殊局部凸空间上的另一种形式的Bishop-Phelps定理. 相似文献
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设X是局部凸Fréchet空间,(Ω,Σ,μ)是非负有限测度空间,则LX1(μ,Σ)是完备的,从而也是局部凸Fréchet空间. 相似文献
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In this paper,the metric space(A, ρ) induced by finite measure space(X,A,μ) is introduced completeness and researched. 相似文献
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设μ为集X的最大一致结构,对于一致空间(X,μ)的完备性,指出有关文献中的证明存在疏漏,并直接运用一致空间完备性的定义给出相关结论的证明. 相似文献
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利用完备化的方法,给出了局部凸分离空间(X,T)中序列{xn}是局部Cauchy列当且仅当存在单调增且趋于正无穷大的正实数列{an},使得min{an,am}(xn-xm)→0(m,n→∞),并得到局部凸分离空间(X,T)是局部完备的当且仅当X中每个丁局部Cauchy列的绝对凸闭包是丁紧的,以及一些局部完备性的相关性质. 相似文献
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讨论了Fuzzy赋范线性中准紧集、完备集及有界集间的关系;给出完备Fuzzy赋范空间的闭球套定理与Baire定理;刻画了了有限维Fuzzy赋范空间的特征。 相似文献
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Jerzy Kakol 《Rendiconti del Circolo Matematico di Palermo》1993,42(3):453-458
Developing ideas found in a recent paper of Gilsdorf to arbitrary topological vector spaces (tvs) one shows that a Hausdorff (LB)
tv
-spaceE is regular provided every null-sequence inE has a series convergent subsequence inE.
Received by the editors 1980Mathematics Subject Classification (1985 Revision) 46A12. 相似文献
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本文举出反例说明文献[7]中关于一致β-正则的充要条件是错误的,并分别给出了诱导极限为β-正则与一致β-正则的正确的充要条件. 相似文献
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Carmen Fernández 《Archiv der Mathematik》1990,54(4):380-383
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J. M. García-Lafuente 《Monatshefte für Mathematik》1987,103(2):115-120
Once the existence of metrizable (LF)-spaces was discovered, the problem whether the completion of an (LF)-space is or is not an (LF)-space was answered in the negative, because no (LF)-space can be a Fréchet space. However, some (non-metrizable) (LF)-spaces are complete, e.g. the classical Köthe's strict (LF)-spaces. In this paper we will carry out a thorough study of the completeness of (LF)-spaces stressing upon the stable completion properties of (LB)-spaces. A basic tool for handling this problem is an Open Mapping Theorem for completions of (LF)-spaces, which is also proved in the present paper.This research, supported by a Fulbright-MEC fellowship, was carried out during the author's visit at the University of Maryland while on leave from the University of Extremadura. The author is grateful to Professor S. A. Saxon for very helpful conversation and, especially, for calling his attention to the problem of completions of (LF)-spaces. 相似文献
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Jochen Wengenroth 《Results in Mathematics》1997,32(1-2):169-178