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math.FA2019
-orthogonality, octahedrality and Daugavet property in Banach spaces
Ginés López-Pérez, Abraham Rueda Zoca
In contrast with the separable case, we prove that the existence of almost -orthogonal vectors in a nonseparable Banach space (octahedrality) does not imply the existence of…
math.FA2019★ 6 cited
Bidual octahedral renormings and strong regularity in Banach spaces
Johann Langemets, Ginés López-Pérez
We prove that every separable Banach space containing can be equivalently renormed so that its bidual space is octahedral, which answers, in the separable case, a question…