Browsing by Subject "Super weakly compact sets"
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- PublicationOpen AccessNonlinear aspects of super weakly compact sets(Association des Annales de l'Institut Fourier, 2022) Raja Baño, Matías; Lancien, Gilles; MatemáticasThe notion of super weak compactness for subsets of Banach spaces is a strengthening of the weak compactness that can be described as a local version of super-reflexivity. A recent result of K. Tu [32] which establishes that the closed convex hull of a super weakly compact set is super weakly compact has removed the main obstacle to further development of the theory. In this paper we provide a variety of results around super weak compactness in order to show the great scope of this notion. We also give non linear characterizations of super weak compactness in terms of the (non) embeddability of special trees and graphs. We conclude with a few relevant examples of super weakly compact sets in non super-reflexive Banach spaces.