QFS-Domains and their Lawson Compactness

QFS-Domains and their Lawson Compactness
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QFS 域及其 Lawson 紧性

DOI:
10.1007/s11083-011-9238-9
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发表时间:
2013-03
期刊:
Order
影响因子:
--
通讯作者:
Luoshan Xu
Luoshan Xu
中科院分区:
其他
文献类型:
--
作者:
Gaolin Li;Luoshan Xu

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本文引入了拟可分离映射和拟近似恒等式的概念。在此基础上定义了QFS-域和拟连续映射。研究了QFS-整环的性质和刻画。主要结果如下:(1)QFS-整环的有限积、非空Scott闭子集、拟连续投影像以及FS-整环都是QFS-整环,(2)QFS-整环在Lawson拓扑中是紧的,(3)L-整环是QFS-整环当且仅当它是FS-整环,当且仅当它在Lawson拓扑中是紧的;(4)有界完备拟连续域,特别是拟连续格,都是QFS-域。
In this paper, concepts of quasi-finitely separating maps and quasi-approximate identities are introduced. Based on these concepts, QFS-domains and quasicontinuous maps are defined. Properties and characterizations of QFS-domains are explored. Main results are: (1) finite products, nonempty Scott closed subsets and quasicontinuous projection images of QFS-domains, as well as FS-domains, are all QFS-domains; (2) QFS-domains are compact in the Lawson topology; (3) An L-domain is a QFS-domain iff it is an FS-domain, iff it is compact in the Lawson topology; (4) Bounded complete quasicontinuous domains, in particular quasicontinuous lattices, are all QFS-domains.
DOI: --
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期刊: Fuzzy systems and mathematics
影响因子: --
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