On S-cluster sets and S-closed spaces
A new type of cluster sets, called S-cluster sets, of functions and multifunctions between topological spaces is introduced, thereby providing a new technique for studying S-closed spaces. The deliberation includes an explicit expression of S-cluster set of a function. As an application, characteriz...
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Online Access: | http://dx.doi.org/10.1155/S0161171200001277 |
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doaj-dd8af2602f3d49ff8d66598a4c4395cc2020-11-24T22:47:12ZengHindawi LimitedInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252000-01-0123959760310.1155/S0161171200001277On S-cluster sets and S-closed spacesM. N. Mukherjee0Atasi Debray1Department of Pure Mathematics, University of Calcutta, 35, Ballygunge Circular Road, Calcutta 700 019, IndiaDepartment of Pure Mathematics, University of Calcutta, 35, Ballygunge Circular Road, Calcutta 700 019, IndiaA new type of cluster sets, called S-cluster sets, of functions and multifunctions between topological spaces is introduced, thereby providing a new technique for studying S-closed spaces. The deliberation includes an explicit expression of S-cluster set of a function. As an application, characterizations of Hausdorff and S-closed topological spaces are achieved via such cluster sets.http://dx.doi.org/10.1155/S0161171200001277S-cluster setS-closednessθs-closuresemi-open sets. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. N. Mukherjee Atasi Debray |
spellingShingle |
M. N. Mukherjee Atasi Debray On S-cluster sets and S-closed spaces International Journal of Mathematics and Mathematical Sciences S-cluster set S-closedness θs-closure semi-open sets. |
author_facet |
M. N. Mukherjee Atasi Debray |
author_sort |
M. N. Mukherjee |
title |
On S-cluster sets and S-closed spaces |
title_short |
On S-cluster sets and S-closed spaces |
title_full |
On S-cluster sets and S-closed spaces |
title_fullStr |
On S-cluster sets and S-closed spaces |
title_full_unstemmed |
On S-cluster sets and S-closed spaces |
title_sort |
on s-cluster sets and s-closed spaces |
publisher |
Hindawi Limited |
series |
International Journal of Mathematics and Mathematical Sciences |
issn |
0161-1712 1687-0425 |
publishDate |
2000-01-01 |
description |
A new type of cluster sets, called S-cluster sets, of functions
and multifunctions between topological spaces is introduced,
thereby providing a new technique for studying S-closed spaces.
The deliberation includes an explicit expression of S-cluster set
of a function. As an application, characterizations of Hausdorff
and S-closed topological spaces are achieved via such cluster
sets. |
topic |
S-cluster set S-closedness θs-closure semi-open sets. |
url |
http://dx.doi.org/10.1155/S0161171200001277 |
work_keys_str_mv |
AT mnmukherjee onsclustersetsandsclosedspaces AT atasidebray onsclustersetsandsclosedspaces |
_version_ |
1725682509090390016 |