Borwein, Jonathan M. and Vanderwerff, Jon D. (1996) Banach Spaces That Admit Support Sets. Proceedings of the American Mathematical Society, 124 (3). pp. 751-755. ISSN 0002-9939
Abstract
It is shown that the existence of a closed convex set all of whose points are properly supported in a Banach space is equivalent to the existence of a certain type of uncountable ordered one-sided biorthogonal system. Under the continuum hypothesis, we deduce that this notion is weaker than the existence of an uncountable biorthogonal system.
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