On the Novak number of a hyperspace
Commentationes Mathematicae Universitatis Carolinae, Tome 33 (1992) no. 4, pp. 695-698
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An estimate for the Novak number of a hyperspace with the Vietoris topology is given. As a consequence it is shown that this cardinal function can decrease passing from a space to its hyperspace.
Classification :
54A25, 54A35, 54B20
Keywords: hyperspace; Vietoris topology; Novak number; netweight
Keywords: hyperspace; Vietoris topology; Novak number; netweight
@article{CMUC_1992__33_4_a14,
author = {Bella, Angelo and Costantini, Camillo},
title = {On the {Novak} number of a hyperspace},
journal = {Commentationes Mathematicae Universitatis Carolinae},
pages = {695--698},
publisher = {mathdoc},
volume = {33},
number = {4},
year = {1992},
mrnumber = {1240191},
zbl = {0782.54008},
language = {en},
url = {http://geodesic.mathdoc.fr/item/CMUC_1992__33_4_a14/}
}
TY - JOUR AU - Bella, Angelo AU - Costantini, Camillo TI - On the Novak number of a hyperspace JO - Commentationes Mathematicae Universitatis Carolinae PY - 1992 SP - 695 EP - 698 VL - 33 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1992__33_4_a14/ LA - en ID - CMUC_1992__33_4_a14 ER -
Bella, Angelo; Costantini, Camillo. On the Novak number of a hyperspace. Commentationes Mathematicae Universitatis Carolinae, Tome 33 (1992) no. 4, pp. 695-698. http://geodesic.mathdoc.fr/item/CMUC_1992__33_4_a14/