Zobrazeno 1 - 10 of 13 pro vyhledávání: '"W. F. Lindgren"'
1
A non-pseudocompact product of countably compact spaces via Seq
Autor: Andrzej Szymanski, W. F. Lindgren
Publikováno v: Proceedings of the American Mathematical Society. 125:3741-3746
We show that under Martin’s axiom there are 22 ω spaces which are countably compact extremally disconnected homogeneous such that the product of any two them is not pseudocompact. The spaces are modeled on
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a7ed5040ed4cb5a39a7b1e1114cadf0d
https://doi.org/10.1090/s0002-9939-97-04013-6
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3
Akademický článek
A non-pseudocompact product of countably compact spaces via Seq.
Autor: W. F. Lindgren, A. A. Szymanski
Publikováno v: Proceedings of the American Mathematical Society; Dec1997, Vol. 125 Issue 12, p3741-3746, 6p
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4
FIRST COUNTABLE COMPACTIFICATIONS
Autor: W. F. Lindgren, W. N. Hunsaker
Publikováno v: Quaestiones Mathematicae. 3:27-31
Theorem. Let X have a Hausdorff compactification YX with | Clγ X (γ X—x)| ⋚ x0. The following are equivalent: γ X—X is p-embedded in γ X every point of γ X—X has a countable base in γ X. X is a-compact.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f57d7232fadeea844e6ef1c23029162d
https://doi.org/10.1080/16073606.1978.9631556
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5
Compactifications of totally bounded quasi-uniform spaces
Autor: P. Fletcher, W. F. Lindgren
Publikováno v: Glasgow Mathematical Journal. 28:31-36
The notation and terminology of this paper coincide with that of reference [4], except that here the term, compactification, refers to a T1-space. It is known that a completely regular totally bounded Hausdorff quasi-uniform space (X, ) has a Hausdor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75354cf4bc57671426408878cc1460ab
https://doi.org/10.1017/s0017089500006303
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7
A Theory of Uniformities for Generalized Ordered Spaces
Autor: W. F. Lindgren, P. Fletcher
Publikováno v: Canadian Journal of Mathematics. 31:35-44
Let (X, ) be a topological space equipped with a partial order ≦ and let C (≦) denote the continuous increasing functions mapping X into R (a function f : X → R is increasing provided f(x) ≦ f(y) whenever x ≦ y) Then (X,, ≦) is an N-space
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ad6644f3e14341d60da6ee9941a145f
https://doi.org/10.4153/cjm-1979-004-4
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8
Topological Spaces with a Unique Compatible Quasi-Uniformity
Autor: W. F. Lindgren
Publikováno v: Canadian Mathematical Bulletin. 14:369-372
In [ 2 ] P. Fletcher proved that a finite topological space has a unique compatible quasi-uniformity; C. Barnhill and P. Fletcher showed in [1] that a topological space (X, ), with finite, has a unique compatible quasiuniformity. In this note we give
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f62d85a8b0385e88cb9a927417de0904
https://doi.org/10.4153/cmb-1971-066-9
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