Abstract
In 1971 Zidler [Zi 71] showed that every separable Banach space (X, ‖·‖) admits an equivalent renorming, (X, ‖·‖0), which is uniformly convex in every direction (UCED), and consequently it has weak normal structure and so the weak fixed point property (WFPP) [D-J-S 71].
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Garcia-Falset, J., Jiménez-Melado, A., Llorens-Fuster, E. (2001). Stability of the Fixed Point Property for Nonexpansive Mappings. In: Kirk, W.A., Sims, B. (eds) Handbook of Metric Fixed Point Theory. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1748-9_7
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DOI: https://doi.org/10.1007/978-94-017-1748-9_7
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