On points of lower and upper quasi-continuity of multivalued maps

Janina Ewert

Mathematica Slovaca (1987)

  • Volume: 37, Issue: 3, page 255-261
  • ISSN: 0139-9918

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Ewert, Janina. "On points of lower and upper quasi-continuity of multivalued maps." Mathematica Slovaca 37.3 (1987): 255-261. <http://eudml.org/doc/34260>.

@article{Ewert1987,
author = {Ewert, Janina},
journal = {Mathematica Slovaca},
keywords = {set of the first category; extremally disconnected space; set of discontinuities; lower quasi-continuous multifunction with compact values},
language = {eng},
number = {3},
pages = {255-261},
publisher = {Mathematical Institute of the Slovak Academy of Sciences},
title = {On points of lower and upper quasi-continuity of multivalued maps},
url = {http://eudml.org/doc/34260},
volume = {37},
year = {1987},
}

TY - JOUR
AU - Ewert, Janina
TI - On points of lower and upper quasi-continuity of multivalued maps
JO - Mathematica Slovaca
PY - 1987
PB - Mathematical Institute of the Slovak Academy of Sciences
VL - 37
IS - 3
SP - 255
EP - 261
LA - eng
KW - set of the first category; extremally disconnected space; set of discontinuities; lower quasi-continuous multifunction with compact values
UR - http://eudml.org/doc/34260
ER -

References

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  2. CROSSLEY S. C, HILDEBRAND S. K., Semi-closed sets and semicontinuity in topological spaces, Texas J. Sci. 22 (1971), 123-126. (1971) 
  3. ENGELKING R., General Topology, Warszawa 1977. (1977) Zbl0373.54002MR0500780
  4. EWERT J., On quasi-continuous and cliquish maps with values in uniform spaces, Bull. Polish Acad. Sci. Math. 32(1984), 81-88. (1984) Zbl0579.54008MR0766984
  5. EWERT J., LIPSKI T., Quasi-continuous multivalued mappings, Math. Slovaca 33 (1983), 69-74. (1983) Zbl0531.54019MR0689280
  6. FORT M. K., Points of continuity of semicontinuous functions, Public. Math. Debrecen 2 (1951), 100-102. (1951) MR0046636
  7. LEVINE N. L., Semi-open sets and semi-continuity in topological spaces, Amer. Math. Monthly 70 (1963), 36-41. (1963) Zbl0113.16304MR0166752
  8. NEUBRUNN T., On quasicontinuity of multifunctions, Math. Slovaca 32 (1982), 147-154. (1982) Zbl0483.54009MR0658248
  9. NJASTAD O., On some classes of nearly open sets, Pacific J. Math. 15 (1965), 961-970. (1965) Zbl0137.41903MR0195040
  10. NOIRI T., A note on semicontinuous mappings, Atti. Accad. Naz. Lincei Rend. CI. Sci. Fis. Mat. Natur. 55 (1974), 400-403. (1974) MR0367897
  11. POPA V., Asupra unor proprietâti multifunctiilor cvasicontinue şi aproape continue, St. Cere. Mat. 30 (1978), 441-446. (1978) MR0518264

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