Abstract:
A new characterization of the Radon-Nikodym property in terms of sizes of slices and equivalent norms is presented. A property opposite to the Radon–Nikodym property is studied in the context of 1-unconditional sums of Banach spaces.
Key words and phrases:Radon–Nikodym property, big slice property, 1-unconditional sums of Banach spaces.