Representation Theorems of $\mathbb{R}$-trees and Brownian Motions Indexed by $\mathbb{R}$-trees

Abstract

We provide a new representation of an $\mathbb{R}$-tree by using a special set of metric rays. We have captured the four-point condition from these metric rays and shown an equivalence between the $\mathbb{R}$-trees with radial and river metrics, and these sets of metric rays. In stochastic analysis, these graphical representation theorems are of particular interest in identifying Brownian motions indexed by $\mathbb{R}$-trees.

17 pages, 805C05, 05C62, 60J65, 54E35 figures

References in corpus (1)

• Brownian motion on R trees