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Almost locally connected spaces

Published online by Cambridge University Press:  09 April 2009

Vincent J. Mancuso
Affiliation:
Department of Mathematics, St. John's University, Jamaica, New York 11439, U.S.A.
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Abstract

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This paper introduces the concept of an almost locally connected space. Every locally connected space is almost locally connected, and the concepts are equivalent in the class of semi-regular spaces. Almost local connectedness is hereditary for regular open subspaces, is preserved by continuous open maps, but not generally by quotient maps. It is productive in the presence of almost-regularity.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1981

References

Dugundji, J. (1966), Topology (Allyn and Bacon, Boston).Google Scholar
Long, P. E. and Carnahan, D. A. (1973), ‘Comparing almost continuous functions’, Proc. Amer. Math. Soc. 38, 413418.CrossRefGoogle Scholar
Pervin, W. J. and Levine, N. (1958), ‘Connected mappings of Hausdorff spaces’, Proc. Amer. Math. Soc. 9, 488496.CrossRefGoogle Scholar
Singal, M. K. and Arya, S. P. (1969), ‘On almost regular spaces’, Glasnik Mat. 4, 8999.Google Scholar
Singal, M. K. and Arya, S. P. (1968), ‘Almost-continuous mappings’, Yokohama Math. J. 16, 6373.Google Scholar
Siwiec, F. (1976), ‘Countable spaces having exactly one nonisolated point I’, Proc. Amer. Math. Soc. 57, 345348.CrossRefGoogle Scholar
Steen, L. A. and Seebach, J. A. Jr (1970), Counterexamples in topology (Holt, Rinehart and Winston, New York).Google Scholar
Stone, M. H. (1937), ‘Applications of the theory of Boolean rings to general topology’, Trans. Amer. Math. Soc. 41, 375481.CrossRefGoogle Scholar