The Fixed Point Property in c0 with an Equivalent Norm
Joint Authors
Gamboa de Buen, Berta
Núñez-Medina, Fernando
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-29
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
We study the fixed point property (FPP) in the Banach space c0 with the equivalent norm ‖⋅‖D.
The space c0 with this norm has the weak fixed point property.
We prove that every infinite-dimensional subspace of (c0,‖⋅‖D) contains a complemented asymptotically isometric copy of c0, and thus does not have the FPP, but there exist nonempty closed convex and bounded subsets of (c0,‖⋅‖D) which are not ω-compact and do not contain asymptotically isometric c0—summing basis sequences.
Then we define a family of sequences which are asymptotically isometric to different bases equivalent to the summing basis in the space (c0,‖⋅‖D), and we give some of its properties.
We also prove that the dual space of (c0,‖⋅‖D) over the reals is the Bynum space l1∞ and that every infinite-dimensional subspace of l1∞ does not have the fixed point property.
American Psychological Association (APA)
Gamboa de Buen, Berta& Núñez-Medina, Fernando. 2011. The Fixed Point Property in c0 with an Equivalent Norm. Abstract and Applied Analysis،Vol. 2011, no. 2011, pp.1-19.
https://search.emarefa.net/detail/BIM-481968
Modern Language Association (MLA)
Gamboa de Buen, Berta& Núñez-Medina, Fernando. The Fixed Point Property in c0 with an Equivalent Norm. Abstract and Applied Analysis No. 2011 (2011), pp.1-19.
https://search.emarefa.net/detail/BIM-481968
American Medical Association (AMA)
Gamboa de Buen, Berta& Núñez-Medina, Fernando. The Fixed Point Property in c0 with an Equivalent Norm. Abstract and Applied Analysis. 2011. Vol. 2011, no. 2011, pp.1-19.
https://search.emarefa.net/detail/BIM-481968
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-481968