Banach spaces which embed into their dual
We use Birkhoff-James' orthogonality in Banach spaces to provide new conditions for the converse of the classical Riesz representation theorem.
Banach-Euclidean four-point properties
Bessel and Grüss type inequalities in inner product modules over Banach -algebras.
Bilipschitz mappings and strong weights.
Bochner property in Banach spaces
Bootstrapping Kirszbraun's extension theorem
We show how Kirszbraun's theorem on extending Lipschitz mappings in Hilbert space implies its own generalization. There is a continuous extension operator preserving the Lipschitz constant of every mapping.
Boule minima contenant une partie bornée de l'espace
Bounded linear regularity, strong CHIP, and CHIP are distinct properties.
Bounded operators on non-Archimedian orthomodular spaces