• Journal of the Korean Institute of Intelligent Systems
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• v.13 no.1
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• pp.114-118
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• 2003

We study some relations between separability in fuzzy topological spaces and one in fuzzy hyperspaces. And we investigate some properties of axiom of countability in fuzzy hyperspaces.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2002.12a
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• pp.67-70
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• 2002

We study some relations between separability in fuzzy topological spaces and one in fuzzy hyperspaces. And we investigate some properties of axiom of countability in fuzzy hyperspaces.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2002.12a
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• pp.59-62
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• 2002

We investigate some relations between the separation axioms in fuzzy topological spaces and one in fuzzy hyperspaces.

• Journal of applied mathematics & informatics
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• v.8 no.2
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• pp.635-640
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• 2001

Let X be a T-admissible space and A(x) be the set of all admissible fibers at x∈X. In this paper, we introduce some basic concepts, properties, and known results about set-valued maps, hyperspaces and especially T-admissible spaces. And then, we construct a certain set-valued map(Theorem 2.3) and an arc from {x} to X∈A(x) in use of the set-valued maps(Theorem 2.3 through Theorem 2.7).

• Journal of the Korean Mathematical Society
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• v.44 no.4
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• pp.845-854
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• 2007

In this paper we investigate relationships between closure-type and convergence-type properties of hyperspaces over a space X and covering properties of X.

• Journal of the Korean Mathematical Society
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• v.19 no.1
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• pp.11-17
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• 1982

• Kyungpook Mathematical Journal
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• v.15 no.1
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• pp.13-24
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• 1975

• Kyungpook Mathematical Journal
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• v.15 no.2
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• pp.223-230
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• 1975

• Journal of the Korean Mathematical Society
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• v.29 no.2
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• pp.341-350
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• 1992

• Kyungpook Mathematical Journal
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• v.25 no.1
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• pp.61-70
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• 1985