Extreme points in non-positive curvature
Volume 234 / 2016
Studia Mathematica 234 (2016), 265-270
MSC: Primary 52A05; Secondary 53C23, 53C70, 54G20.
DOI: 10.4064/sm8549-6-2016
Published online: 25 August 2016
Abstract
A natural analogue of the Krein–Milman theorem is shown to fail for ${\rm CAT}(0)$ spaces.
