Some conditions under which a uniform space is fine

Umberto Marconi

Commentationes Mathematicae Universitatis Carolinae (1993)

  • Volume: 34, Issue: 3, page 543-547
  • ISSN: 0010-2628

Abstract

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Let X be a uniform space of uniform weight μ . It is shown that if every open covering, of power at most μ , is uniform, then X is fine. Furthermore, an ω μ -metric space is fine, provided that every finite open covering is uniform.

How to cite

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Marconi, Umberto. "Some conditions under which a uniform space is fine." Commentationes Mathematicae Universitatis Carolinae 34.3 (1993): 543-547. <http://eudml.org/doc/247513>.

@article{Marconi1993,
abstract = {Let $X$ be a uniform space of uniform weight $\mu $. It is shown that if every open covering, of power at most $\mu $, is uniform, then $X$ is fine. Furthermore, an $\omega _\mu $-metric space is fine, provided that every finite open covering is uniform.},
author = {Marconi, Umberto},
journal = {Commentationes Mathematicae Universitatis Carolinae},
keywords = {uniform space; uniform weight; fine uniformity; uniformly locally finite; $\omega _\mu $-additive space; $\omega _\mu $-metric space; fine uniformity; uniformly locally finite family; -additive space; uniform space; uniform weight; -metric space},
language = {eng},
number = {3},
pages = {543-547},
publisher = {Charles University in Prague, Faculty of Mathematics and Physics},
title = {Some conditions under which a uniform space is fine},
url = {http://eudml.org/doc/247513},
volume = {34},
year = {1993},
}

TY - JOUR
AU - Marconi, Umberto
TI - Some conditions under which a uniform space is fine
JO - Commentationes Mathematicae Universitatis Carolinae
PY - 1993
PB - Charles University in Prague, Faculty of Mathematics and Physics
VL - 34
IS - 3
SP - 543
EP - 547
AB - Let $X$ be a uniform space of uniform weight $\mu $. It is shown that if every open covering, of power at most $\mu $, is uniform, then $X$ is fine. Furthermore, an $\omega _\mu $-metric space is fine, provided that every finite open covering is uniform.
LA - eng
KW - uniform space; uniform weight; fine uniformity; uniformly locally finite; $\omega _\mu $-additive space; $\omega _\mu $-metric space; fine uniformity; uniformly locally finite family; -additive space; uniform space; uniform weight; -metric space
UR - http://eudml.org/doc/247513
ER -

References

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  1. Artico G. and Moresco R., ø m e g a μ -additive topological spaces, Rend. Sem. Mat. Univ. Padova 67 (1982), 131-141. (1982) MR0682706
  2. Atsuji M., Uniform continuity of continuous functions of metric spaces, Pacific J. Math. 8 (1958), 11-16. (1958) Zbl0082.16207MR0099023
  3. Di Concilio A., Naimpally S.A., Uniform continuity in sequentially uniform spaces, Acta Mathematica Hungarica 61 3-4 (1993 to appear). (1993 to appear) Zbl0819.54014MR1200953
  4. Engelking R., General Topology, Polish Scientific Publishers Warsaw (1977). (1977) Zbl0373.54002MR0500780
  5. Isbell J.R., Uniform Spaces, Mathematical Surveys nr 12 AMS Providence, Rhode Island (1964). (1964) Zbl0124.15601MR0170323
  6. Isiwata T., On uniform continuity of C ( X ) (Japanese), Sugaku Kenkiu Roku of Tokyo Kyoiku Daigaku 2 (1955), 36-45. (1955) 
  7. Marconi U., On the uniform paracompactness, Rend. Sem. Mat. Univ. Padova 72 (1984), 101-105. (1984) Zbl0566.54013MR0778348
  8. Marconi U., On uniform paracompactness of the ø m e g a μ -metric spaces, Rend. Accad. Naz. Lincei 75 (1983), 102-105. (1983) MR0780810
  9. Morita K., Paracompactness and product spaces, Fund. Math. 50 (1962), 223-236. (1962) Zbl0099.17401MR0132525
  10. Rainwater J., Spaces whose finest uniformity is metric, Pacific J. Math. 9 (1959), 567-570. (1959) Zbl0088.38301MR0106448

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