Hyperconvexity of ℝ-trees
Volume 156 / 1998
Fundamenta Mathematicae 156 (1998), 67-72
DOI: 10.4064/fm-156-1-67-72
Abstract
It is shown that for a metric space (M,d) the following are equivalent: (i) M is a complete ℝ-tree; (ii) M is hyperconvex and has unique metric segments.
