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The Lindelöf property and fragmentability
Author(s):
B.
Cascales;
I.
Namioka;
G.
Vera
Journal:
Proc. Amer. Math. Soc.
128
(2000),
3301-3309.
MSC (2000):
Primary 46A50, 46B22;
Secondary 54C35
Posted:
April 28, 2000
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Abstract:
Let be a compact Hausdorff space and the space of continuous real functions on . In this paper we prove that any -Lindelöf subset of which is compact for the topology of pointwise convergence on a dense subset is norm fragmented; i.e., each non-empty subset of it contains a non-empty -relatively open subset of small supremum norm diameter. Several applications are given.
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Additional Information:
B.
Cascales
Affiliation:
Departamento de Matemáticas, Facultad de Matemáticas, Universidad de Murcia, 30.100 Espinardo, Murcia, Spain
Email:
beca@fcu.um.es
I.
Namioka
Affiliation:
Department of Mathematics, Box 354350, University of Washington, Seattle, Washington 98195--4350
Email:
namioka@math.washington.edu
G.
Vera
Affiliation:
Departamento de Matemáticas, Facultad de Matemáticas, Universidad de Murcia, 30.100 Espinardo, Murcia, Spain
Email:
gvb@fcu.um.es
DOI:
10.1090/S0002-9939-00-05480-0
PII:
S 0002-9939(00)05480-0
Keywords:
Pointwise compactness,
Radon-Nikod\'ym compact spaces,
fragmentability
Received by editor(s):
July 20, 1998
Received by editor(s) in revised form:
December 20, 1998
Posted:
April 28, 2000
Additional Notes:
The first and third authors were partially supported by research grant DGES PB 95--1025.
Communicated by:
Dale Alspach
Copyright of article:
Copyright
2000,
American Mathematical Society
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