Ordinal invariants and epimorphisms in some categories of weak Hausdorff spaces

Dikran N. Dikranjan; Eraldo Giuli

Commentationes Mathematicae Universitatis Carolinae (1986)

  • Volume: 027, Issue: 2, page 395-417
  • ISSN: 0010-2628

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Dikranjan, Dikran N., and Giuli, Eraldo. "Ordinal invariants and epimorphisms in some categories of weak Hausdorff spaces." Commentationes Mathematicae Universitatis Carolinae 027.2 (1986): 395-417. <http://eudml.org/doc/17468>.

@article{Dikranjan1986,
author = {Dikranjan, Dikran N., Giuli, Eraldo},
journal = {Commentationes Mathematicae Universitatis Carolinae},
keywords = {weak Hausdorff spaces; epimorphisms; ordinal invariants; A-closure; co- well-poweredness},
language = {eng},
number = {2},
pages = {395-417},
publisher = {Charles University in Prague, Faculty of Mathematics and Physics},
title = {Ordinal invariants and epimorphisms in some categories of weak Hausdorff spaces},
url = {http://eudml.org/doc/17468},
volume = {027},
year = {1986},
}

TY - JOUR
AU - Dikranjan, Dikran N.
AU - Giuli, Eraldo
TI - Ordinal invariants and epimorphisms in some categories of weak Hausdorff spaces
JO - Commentationes Mathematicae Universitatis Carolinae
PY - 1986
PB - Charles University in Prague, Faculty of Mathematics and Physics
VL - 027
IS - 2
SP - 395
EP - 417
LA - eng
KW - weak Hausdorff spaces; epimorphisms; ordinal invariants; A-closure; co- well-poweredness
UR - http://eudml.org/doc/17468
ER -

References

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  1. ARHANGEĽSKII A., FRANKLIN S., Ordinal invariants foг topological spaces, Mich. Math. J. 15 (1968), 313-320. (1968) 
  2. ARHANGEĽSKII A., WIEGANDT R., Connectedness and disconnectedness in topology, Gen. Top. Appl. 5 (1975), 9-33. (1975) MR0367920
  3. BOONE J., DAVIS S., GRUENHAGE C., Cardinal functions for k-spaces, Proc. Amer. Math. Soc. 68 (3) (1978), 355-378. (1978) Zbl0384.54001MR0467676
  4. DIKRANJAN D., GIULI E., Closure operators induced by topological epireflections, Coll. Math. Soc. Janos Bolyai, 41, Topology and Appl. Egeг (Hungary), 1983 (to appeaг). (1983) MR0863906
  5. DIKRANJAN D., GIULI E., Epimorphisms and cowellpoweredness of epireflective subcategories of Top, Rend. Circolo Mat. Palermo, Suppl. 6 (1984), 121-136. (1984) Zbl0588.54017MR0782710
  6. DIKRANJAN D., GIULI E., S(n)- θ -closed spaces, pгepгint. Zbl0658.54015
  7. DIKRANJAN D., GIULI E., Inclusions preserving epimorphisms, preprìnt. Zbl0820.54003
  8. ENGELKING R., General Topology, (Polish Sci. Publ., Warszawa 197ł). (197ł) MR0500780
  9. FRANKLIN S., ROBERTSON L., 0-sequences and 0-nets, Amer. Math. Monthly 72 (1965), 506-510. (1965) MR0199836
  10. GIULI E., Bases of topological epireflections, Topology Appl. 11 (1980), 256-273. (1980) MR0585271
  11. GIULI E., HUŠEK M., A diagonal theorem for epireflective subcategories of Top and co-well-poweredness, Annali Mat. (to appeaг). 
  12. HERRLICH H., Topologische Reflexionen und Coreflexionen, Lecture Notes in Math, 78 (Springer, Berlin, 1968). (1968) Zbl0182.25302MR0256332
  13. HOFFMANN R. E., On weak Hausdoгff spaces, Aгch. Math. 32 (1979), 487-504. (1979) MR0547371
  14. HOFFMANN R. E., Factorization of cones II, Lecture Notes in Math, 915 (Springer, Berlin, 1982), 148-170. (1982) Zbl0509.18004MR0659890
  15. ISBELL J., Epimorphisms and dominions, Proc. of the Conference on Categorical Algebra (La Jolla, 1965), Springer, 1966, 232-246. (1965) MR0209202
  16. KANNAN V., Ordinal invariants in topology, Memoirs Amer. Math. Soc. Vol. 32 No 245 (1981). (1981) Zbl0473.54001MR0617500
  17. KISS E. W., MARKI L., FRÖHLE P., THOLEN W., Categorical algebraic properties. A compendium on amalgamation, conqruence extension, epimorphisms, residual smallness, and injectivity, Studia Scientiarum Math. Hungarica 18 (1983), 79-141. (1983) MR0759319
  18. LEVINE N., A note on convergence in topological spaces, Amer. Math, Monthly 67 (1960), 667-668. (1960) Zbl0100.18603MR0124874
  19. LAWSON J., MADISON B., Comparisons of notions of weak Hausdorffness, Topology Proc. Memphis State Univ. Confeгence 1975, Ed. by S. P. Franklin and B. V. Smith Thomas (New York - Basel, 1976), 207-215. (1975) MR0428274
  20. McCORD M., Classifying spaces and infinite symmetric products, Trans. Ameг. Math. Soc. 146 (1969), 275-298. (1969) Zbl0193.23604MR0251719
  21. SALBANY S., Reflective subcategories and closure operatoгs, Lecture Notes in Math. 540 (Springer, Berlin, 1976), 548-565. (1976) MR0451186
  22. SCHRÖDER J., The category of Urysohn spaces is not co-wellpowered, Topology Appl. 16 (1983), 237-241. (1983) MR0722116
  23. THOLEN W., Prereflections and reflections, Comm. Algebra (to appeaг). Zbl0587.18002MR0830816
  24. TOZZI A., US-spaces and closure operators, Preprint. Zbl0599.54016MR0853169
  25. ARHANGEĽSKII A. V., ISLER R., TIRONI G., On pseudo-radial spaces, Comment. Math. Univ. Carolinae 27 (1986), 137-154. (1986) MR0843426

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