Extreme points and rotundity in Musielak-Orlicz-Bochner function spaces endowed with Orlicz norm.
Extreme points and rotundity of Orlicz-Sobolev spaces.
Extreme Points in Duals of Operator Spaces.
Extreme points in spaces of operators and vector – valued measures
Extreme points in tensor products and a theorem of de Leeuw
Extreme Points of a Convex Subset of the Cone of Positive Semidefinite Matrices.
Extreme Points of Convex Sets.
Extreme points of the Besicovitch--Orlicz space of almost periodic functions equipped with the Luxemburg norm
We investigate which points in the unit sphere of the Besicovitch--Orlicz space of almost periodic functions, equipped with the Luxemburg norm, are extreme points. Sufficient conditions for the strict convexity of this space are also given.
Extreme points of the closed unit ball in C*-algebras
In this short note we give a short and elementary proof of a characterization of those extreme points of the closed unit ball in C*-algebras which are unitary. The result was originally proved by G. K. Pedersen using some methods from the theory of approximation by invertible elements.
Extreme points of the complex binary trilinear ball
We characterize all the extreme points of the unit ball in the space of trilinear forms on the Hilbert space . This answers a question posed by R. Grząślewicz and K. John [7], who solved the corresponding problem for the real Hilbert space . As an application we determine the best constant in the inequality between the Hilbert-Schmidt norm and the norm of trilinear forms.
Extreme points of the positive part of the unit ball and strictly monotone norm.
Extreme points of the unit cell in Lebesgue-Bochner function spaces
Extreme positive functionals
Extreme Positive Linear Maps on C*-Algebras.
Extreme positive operators on involution algebras
Extreme Punkte in der Einheitskugel des Vektorraumes der trigonometrischen Prolynome.
Extreme spectral states and multiplicative extensions in Banach algebras
Extreme Spectral States of Commutative Banach Algebras.
Extreme symmetric norms on
Extreme topological measures
It has been an open question since 1997 whether, and under what assumptions on the underlying space, extreme topological measures are dense in the set of all topological measures on the space. The present paper answers this question. The main result implies that extreme topological measures are dense on a variety of spaces, including spheres, balls and projective planes.