A quantitative version of Krein´s Theorem on convex hulls of weak compact sets is proved. Some applications to weakly compactly generated Banach spaces are given.
A quantitative version of Krein´s Theorem on convex hulls of weak compact sets is proved. Some applications to weakly compactly generated Banach spaces are given. (en)
Je dokázána kvantitativní zobecnění klasické Kreinovy věty o slabé kompaktnosti konvexního obalu slabé kompaktní množiny v Banachově prostoru. (cs)