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Open Mathematics
(Feb 2014)
On the cardinality of n-Urysohn and n-Hausdorff spaces
Bonanzinga Maddalena,
Cuzzupé Maria,
Pansera Bruno
Affiliations
Bonanzinga Maddalena
Dipartimento di Matematica e Informatica, Università di Messina, Viale F. Stagno d’Acontres 31, 98166, Messina, Italy
Cuzzupé Maria
Dipartimento di Matematica e Informatica, Università di Messina, Viale F. Stagno d’Acontres 31, 98166, Messina, Italy
Pansera Bruno
Dipartimento di Matematica e Informatica, Università di Messina, Viale F. Stagno d’Acontres 31, 98166, Messina, Italy
DOI
https://doi.org/10.2478/s11533-013-0339-0
Journal volume & issue
Vol. 12, no. 2
pp. 330 – 336
Abstract
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No abstracts available.
Keywords
54a25
54d10
urysohn number of a space
hausdorff number of a space
$$cl^\mathcal{h}$$-operator
θ-closure
$$cl_\theta ^\mathcal{h}$$-operator
relative lindelöf number
almost lindelöf degree of a space
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