# κ-compactness, extent and the Lindelöf number in LOTS

David Buhagiar; Emmanuel Chetcuti; Hans Weber

Open Mathematics (2014)

- Volume: 12, Issue: 8, page 1249-1264
- ISSN: 2391-5455

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topDavid Buhagiar, Emmanuel Chetcuti, and Hans Weber. "κ-compactness, extent and the Lindelöf number in LOTS." Open Mathematics 12.8 (2014): 1249-1264. <http://eudml.org/doc/269564>.

@article{DavidBuhagiar2014,

abstract = {We study the behaviour of ℵ-compactness, extent and Lindelöf number in lexicographic products of linearly ordered spaces. It is seen, in particular, that for the case that all spaces are bounded all these properties behave very well when taking lexicographic products. We also give characterizations of these notions for generalized ordered spaces.},

author = {David Buhagiar, Emmanuel Chetcuti, Hans Weber},

journal = {Open Mathematics},

keywords = {Linearly ordered topological space; Lexicographic product; Generalized ordered space; ℵ-compact space; Extent; Lindelöf number; linearly ordered topological space; lexicographic product; generalized ordered space; -compact space; extent},

language = {eng},

number = {8},

pages = {1249-1264},

title = {κ-compactness, extent and the Lindelöf number in LOTS},

url = {http://eudml.org/doc/269564},

volume = {12},

year = {2014},

}

TY - JOUR

AU - David Buhagiar

AU - Emmanuel Chetcuti

AU - Hans Weber

TI - κ-compactness, extent and the Lindelöf number in LOTS

JO - Open Mathematics

PY - 2014

VL - 12

IS - 8

SP - 1249

EP - 1264

AB - We study the behaviour of ℵ-compactness, extent and Lindelöf number in lexicographic products of linearly ordered spaces. It is seen, in particular, that for the case that all spaces are bounded all these properties behave very well when taking lexicographic products. We also give characterizations of these notions for generalized ordered spaces.

LA - eng

KW - Linearly ordered topological space; Lexicographic product; Generalized ordered space; ℵ-compact space; Extent; Lindelöf number; linearly ordered topological space; lexicographic product; generalized ordered space; -compact space; extent

UR - http://eudml.org/doc/269564

ER -

## References

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- [5] Miwa T., Kemoto N., Linearly ordered extensions of GO-spaces, Topology Appl., 1993, 54(1–3), 133–140 http://dx.doi.org/10.1016/0166-8641(93)90057-K Zbl0808.54022
- [6] Nagata J., Modern General Topology, 2nd ed., North-Holland Math. Library, 33, North-Holland, Amsterdam, 1985 Zbl0598.54001
- [7] Stephenson R.M. Jr., Initially κ-compact and related spaces, In: Handbook of Set-Theoretic Topology, North-Holland, 1984, 603–632