Abstract
We study the (possible) relation between diameter two properties and various notions of polyhedrality. I-polyhedral spaces (being non-reflexive, M-embedded) have the strong diameter two property; however it turns out that even in II-polyhedral spaces the unit ball may contain slices of small diameter.
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The authors want to thank an anonymous referee for suggestions that improved the exposition.
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The research of G. López-Pérez was partially supported by MINECO (Spain) Grant MTM2015-65020-P and Junta de Andalucía Grant FQM-185.
The research of A. Rueda Zoca was supported by a research fellowship MECD (Spain) FPU2016/00015, by MINECO (Spain) Grant MTM2015-65020-P and by Junta de Andalucía Grants FQM-0185.
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López-Pérez, G., Rueda Zoca, A. Diameter two properties and polyhedrality. RACSAM 113, 131–135 (2019). https://doi.org/10.1007/s13398-017-0458-8
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DOI: https://doi.org/10.1007/s13398-017-0458-8