Reflexive Banach spaces without equivalent norms which are uniformly convex or uniformly differentiable in every direction

D. Kutzarova; S. Troyanski

Displaying similar documents to “Reflexive Banach spaces without equivalent norms which are uniformly convex or uniformly differentiable in every direction”

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We give a new construction of uniformly convex norms with a power type modulus on super-reflexive spaces based on the notion of dentability index. Furthermore, we prove that if the Szlenk index of a Banach space is less than or equal to ω (first infinite ordinal) then there is an equivalent weak* lower semicontinuous positively homogeneous functional on X* satisfying the uniform Kadec-Klee Property for the weak*-topology (UKK*). Then we solve the UKK or UKK* renorming problems for...

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Manuel Cepedello-Boiso (1998)

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We present here a new method for approximating functions defined on superreflexive Banach spaces by differentiable functions with α-Hölder derivatives (for some 0 < α≤ 1). The smooth approximation is given by means of an explicit formula enjoying good properties from the minimization point of view. For instance, for any function f which is bounded below and uniformly continuous on bounded sets this formula gives a sequence of Δ-convex $C^{1, α}$ functions converging to f uniformly on bounded...