Approximate quantities, hyperspaces and metric completeness

Valentín Gregori; Salvador Romaguera

Bollettino dell'Unione Matematica Italiana (2000)

  • Volume: 3-B, Issue: 3, page 751-755
  • ISSN: 0392-4041

How to cite


Gregori, Valentín, and Romaguera, Salvador. "Approximate quantities, hyperspaces and metric completeness." Bollettino dell'Unione Matematica Italiana 3-B.3 (2000): 751-755. <>.

author = {Gregori, Valentín, Romaguera, Salvador},
journal = {Bollettino dell'Unione Matematica Italiana},
keywords = {approximate quantity},
language = {eng},
month = {10},
number = {3},
pages = {751-755},
publisher = {Unione Matematica Italiana},
title = {Approximate quantities, hyperspaces and metric completeness},
url = {},
volume = {3-B},
year = {2000},

AU - Gregori, Valentín
AU - Romaguera, Salvador
TI - Approximate quantities, hyperspaces and metric completeness
JO - Bollettino dell'Unione Matematica Italiana
DA - 2000/10//
PB - Unione Matematica Italiana
VL - 3-B
IS - 3
SP - 751
EP - 755
LA - eng
KW - approximate quantity
UR -
ER -


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  2. CIRIC, L. B., A generalization of Banach's contraction principle, Proc. Amer. Math. Soc., 45 (1974), 267-273. Zbl0291.54056MR356011
  3. EDGAR, G. A., Measure, Topology and Fractal Geometry, Undergraduate Texts in Math., Springer-Verlag, 1990. Zbl0727.28003MR1065392
  4. HEILPERN, S., Fuzzy mappings and fixed point theorem, J. Math. Anal. Appl., 83 (1981), 566-569. Zbl0486.54006MR641351
  5. PARK, J. Y.- JEONG, J. U., Fixed point theorems for fuzzy mappings, Fuzzy Sets and Systems, 87 (1997), 111-116. Zbl0912.54033MR1441936

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