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A note on [a, b]-compactness

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In this paper, the relationship between [a, b]-compactness in the sense of open covers and complete accumulation points is studied. But the authors focus on the open covers.
Abstract
In this note we study the relationship between [a, b]-compactness in the sense of open covers, and [a, b]-compactness in the sense of complete accumulation points.

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Book ChapterDOI

CHAPTER 9 – Covering Properties

TL;DR: In this article, the authors discuss certain characterizations of different covering properties and the relationships among them and describe invariance under mappings, products, subspaces, and sums.
Journal ArticleDOI

A covering property which implies isocompactness. I

J. M. Worrell, +1 more
Abstract: We define a covering property for a topological space which does not explicitly mention countability or finitude of collections although it generalizes weak 80-refinability. We prove a general theorem that implies that countably compact spaces having the covering property are compact.
Journal ArticleDOI

Convergence, closed projections and compactness

TL;DR: In this paper, several results of N. Noble concerning closed projections are extended using generalizations of first countable, Frechet, and sequential spaces, and they also consider compactness conditions defined by requiring that certain nets have cluster points.

On linear cofinal completeness

TL;DR: In this article, it was shown that linear cofinal completeness implies supercompleteness, and that in metric uniform spaces (or, more generally, in uniform spaces with a linearly ordered basis) linear co-finish completeness is equivalent to co-supercompletion.
References
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Journal ArticleDOI

Characterizations of Developable Topological Spaces

TL;DR: In this paper, the authors present an anslysis of the concept of developable space in terms of certain more extensive classes of spaces satisfying the first axiom of countability: spaces with a base of countable order and those having a θ-base.
Journal ArticleDOI

On countably paracompact spaces

Journal ArticleDOI

Some results in the theory of topological spaces, obtained within the last twenty-five years

TL;DR: In this article, the authors introduce the notion of locally finite systems of sets, paracompact spaces, complete regular spaces, and continuous mappings of topological spaces and infinite dimensional spaces.
Journal ArticleDOI

A generalization of a theorem of Aquaro

TL;DR: In this paper, the concept of a δθ-cover was introduced to generalize Aquaro's Theorem that every point countable open cover of a topological space such that every discrete closed family of sets is countable has a countable subcover.
Journal ArticleDOI

Linearly ordered topological spaces

TL;DR: In this article, the equivalence of m-paracompactness and m-boundedness in the setting of linearly ordered spaces has been established by means of a characterization in terms of conditions imposed on the gaps of the space.