The main purpose of this paper is to identify topologies on the closed subsets C(X)\mathscr{C}(X) of a Hausdorff space X that are sequentially equivalent to classical Kuratowski-Painlevé convergence K. This reduces to a study of upper topologies sequentially equivalent to upper Kuratowski-Painlevé convergence K+^+, where we are of course led to consider the sequential modification of upper Kuratowski-Painlevé convergence. We characterize those miss topologies induced by a cobase of closed sets that are sequentially equivalent to K+^+, with special attention given to X first countable. Separately in the final section, we revisit Mrowka's theorem on the compactness of Kuratowski-Painlevé convergence.

Contact details are reproduced from the original publication and may be historical.

Gerald Beer

Dept. of Mathematics, California State University, 5151 State University Drive, Los Angeles, CA 90032, U.S.A.

gbeer@cslanet.calstatela.edu

Jesús Rodríguez-López

Instituto Universitario de Matemática Pura y Aplicada, Universidad Politécnica, 46022 Valencia, Spain

jrlopez@mat.upv.es
  1. B. Alleche, J. Calbrix: On the coincidence of the upper Kuratowski topology with the cocompact topology, Topology Appl. 93 (1999) 207–218.https://doi.org/10.1016/S0166-8641(97)00269-1Google Scholar
  2. M. Arab, J. Calbrix: Sur la topologie de Fell et la topologie de la convergence, C. R. Acad. Sci., Paris, Sér. I 318 (1994) 549–552.Google Scholar
  3. M. Arab, J. Calbrix: Comparison of some classical topologies on hyperspaces within the framework of point spaces, Set-Valued Anal. 5 (1997) 47–55.https://doi.org/10.1023/A:1008621109453Google Scholar
  4. R. M. Aron, D. García, M. Maestre: Construction of weakly dense, norm divergent sequences, J. Convex Analysis 16 (2009) 667–672.https://doi.org/10.68381/jca16038Google Scholar
  5. H. Attouch: Variational Convergence for Functions and Operators, Pitman, Boston (1984).Google Scholar
  6. G. Beer: Topologies on Closed and Closed Convex Sets, Kluwer, Dordrecht (1993).https://doi.org/10.1007/978-94-015-8149-3Google Scholar
  7. G. Beer: On convergence to infinity, Monatsh. Math. 129 (2000) 267–280.https://doi.org/10.1007/s006050050075Google Scholar
  8. G. Beer: Embeddings of bornological universes, Set-Valued Anal. 16 (2008) 477–488.https://doi.org/10.1007/s11228-007-0068-2Google Scholar
  9. G. Beer, J. Rodríguez-López: Ultimately increasing functions, Real Anal. Exch., to appear.Google Scholar
  10. C. Berge: Topological Spaces, Macmillan, New York (1963).Google Scholar
  11. A. Bouziad: Consonance and topological completeness in analytic spaces, Proc. Amer. Math. Soc. 127 (1999) 3733–3737.https://doi.org/10.1090/S0002-9939-99-04902-3Google Scholar
  12. A. Bouziad: Filters, consonance and hereditary Baireness, Topology Appl. 104 (2000) 27–38.https://doi.org/10.1016/S0166-8641(99)00014-0Google Scholar
  13. A. Bouziad: Coincidence of the upper Kuratowski topology with the co-compact topology on compact sets, and the Prohorov property, Topology Appl. 120 (2002) 283–299.https://doi.org/10.1016/S0166-8641(01)00081-5Google Scholar
  14. A. Bouziad: H-trivial spaces, Topology Appl. 132 (2003) 159–174.https://doi.org/10.1016/S0166-8641(02)00373-5Google Scholar
  15. G. Choquet: Convergences, Ann. Univ. Grenoble, Sect. Sci. Math. Phys., II. Ser. 23 (1948) 57–112.Google Scholar
  16. C. Costantini, Ľ. Holá, P. Vitolo: Tightness, character and related properties of hyperspace topologies, Topology Appl. 142 (2004) 245–292.https://doi.org/10.1016/j.topol.2004.02.007Google Scholar
  17. C. Costantini, S. Levi, J. Pelant: Infima of hyperspace topologies, Mathematika 42 (1995) 67–86.https://doi.org/10.1112/S0025579300011360Google Scholar
  18. C. Costantini, P. Vitolo: On the infimum of the Hausdorff metric topologies, Proc. Lond. Math. Soc., III. Ser. 70 (1995) 441–480.https://doi.org/10.1112/plms/s3-70.2.441Google Scholar
  19. C. Costantini, S. Watson: On the dissonance of some metrizable spaces, Topology Appl. 84 (1998) 259–268.https://doi.org/10.1016/S0166-8641(97)00096-5Google Scholar
  20. G. Di Maio, Ľ. Holá, E. Meccariello: Properties related to first countability and countable compactness in hyperspaces: a new approach, Topology Appl. 137 (2004) 83–97.https://doi.org/10.1016/S0166-8641(03)00201-3Google Scholar
  21. G. Di Maio, E. Meccariello, S. Naimpally: Uniformizing (proximal) ∆-topologies, Topology Appl. 137 (2004) 99–113.https://doi.org/10.1016/S0166-8641(03)00202-5Google Scholar
  22. G. Di Maio, E. Meccariello, S. Naimpally: Symmetric Bombay topology, Appl. Gen. Topol. 9 (2008) 109–132.https://doi.org/10.4995/agt.2008.1872Google Scholar
  23. S. Dolecki, G. Greco: Cyrtologies of convergences. I, Math. Nachr. 126 (1986) 327–348.https://doi.org/10.1002/mana.19861260122Google Scholar
  24. S. Dolecki, G. Greco: Cyrtologies of convergences. II: sequential convergences, Math. Nachr. 127 (1986) 317–334.https://doi.org/10.1002/mana.19861270123Google Scholar
  25. S. Dolecki, G. Greco, A. Lechicki: When do the upper Kuratowski topology (homeomorphically Scott topology) and the co-compact topology coincide?, Trans. Amer. Math. Soc. 347 (1995) 2868–2883.https://doi.org/10.1090/S0002-9947-1995-1303118-7Google Scholar
  26. S. Dolecki, G. Salinetti, R. Wets: Convergence of functions: equisemicontinuity, Trans. Amer. Math. Soc. 276 (1983) 409–429.https://doi.org/10.1090/S0002-9947-1983-0684518-7Google Scholar
  27. R. Engelking: General Topology, Sigma Series in Pure Mathematics 6, Heldermann, Berlin (1989).Google Scholar
  28. S. Franklin: Spaces in which sequences suffice, Fundam. Math. 57 (1965) 107–115.https://doi.org/10.4064/fm-57-1-107-115Google Scholar
  29. S. Franklin: Spaces in which sequences suffice. II, Fundam. Math. 61 (1967) 51–56.https://doi.org/10.4064/fm-61-1-51-56Google Scholar
  30. D. Fremlin: Topologies on spaces of subsets (private communication).Google Scholar
  31. Ľ. Holá, J. Pelant: Recent progress in hyperspace topologies, in: Recent Progress in General Topology II (Prague, 2001), M. Hušek, J. van Mill (eds.), Elsevier, Amsterdam (2002) 253–285.https://doi.org/10.1016/B978-044450980-2/50010-8Google Scholar
  32. R. Holmes: Geometric Functional Analysis, Springer, New York (1975).Google Scholar
  33. J.-C. Hou: A note on the Fell topology, Quest. Answers Gen. Topology 17 (1999) 81–87.Google Scholar
  34. V. M. Kadets: Weak cluster points of a sequence and coverings by cylinders, Mat. Fiz. Anal. Geom. 11 (2004) 161–168.Google Scholar
  35. E. Klein, A. Thompson: Theory of Correspondences, Wiley, New York (1984).Google Scholar
  36. K. Kuratowski: Topology. Vol. I, Academic Press, New York (1966).Google Scholar
  37. S. Mrowka: Some comments on the space of subsets, in: Set-Valued Mappings, Selections, and Topological Properties of 2X (Buffalo, 1969), W. Fleischman (ed.), Lectures Notes in Mathematics 171, Springer, Berlin (1970) 59–63.https://doi.org/10.1007/BFb0069722Google Scholar
  38. F. Mynard: First-countability, sequentiality and tightness of the upper Kuratowski convergence, Rocky Mt. J. Math 33 (2003) 1011–1037.https://doi.org/10.1216/rmjm/1181069940Google Scholar
  39. S. Naimpally: Proximity Approach to Problems in Topology and Analysis, Oldenbourg, Munich (2009).https://doi.org/10.1524/9783486598605Google Scholar
  40. T. Nogura, D. Shakmatov: When does the Fell topology on a hyperspace of closed sets coincide with the meet of the upper Kuratowski and the lower Vietoris topologies?, Topology Appl. 70 (1996) 213–243.https://doi.org/10.1016/0166-8641(95)00098-4Google Scholar
  41. L. Steen, J. Seebach: Counterexamples in Topology, 2nd Ed., Springer, New York (1978).https://doi.org/10.1007/978-1-4612-6290-9Google Scholar
  42. R. J.-B. Wets: Convergence of convex functions, variational inequalities, and convex optimization problems, in: Variational Inequalities and Complementarity Problems. Theory and Applications (Erice, 1978), R. W. Cottle, F. Gianessi, J.-L. Lions (eds.), Wiley, Chichester (1980) 375–403.Google Scholar
  43. R. Wijsman: Convergence of sequences of convex sets, cones, and functions II, Trans. Amer. Math. Soc. 123 (1966) 32–45.https://doi.org/10.1090/S0002-9947-1966-0196599-8Google Scholar
  44. S. Willard: General Topology, Addison-Wesley, Reading (1970).Google Scholar

G. Beer, J. Rodríguez-López. “Topologies Associated with Kuratowski-Painlevé Convergence of Closed Sets.” Journal of Convex Analysis 17 (2010), No. 3&4, 805–826. https://doi.org/10.68381/jca17053