Abstract
We define the concept of an ultrametric Möbius space (Z,M) and show that the boundary at infinity of a nonelementary geodesically complete tree is naturally an ultrametric Möbius space. In addition, we construct to a given ultrametric Möbius space (Z,M) a nonelementary geodesically complete tree, unique up to isometry, with (Z,M) being its boundary at infinity. This yields a one-to-one correspondence.
Similar content being viewed by others
References
M. Bestvina, “R-trees in topology, geometry and group theory,” in Handbook of Geometric Topology, pp. 55–91, edited by R. J. Daverman and R. B. Sher (North-Holland, Amsterdam, 2002).
K. Biswas, “On Möbius and conformal maps between boundaries of CAT(-1) spaces,” Annales de la Institut Fourier 65 (3), 1387–1422 (2015).
M. Bonk and O. Schramm, “Embeddings of Gromov hyperbolic spaces,” Geom. Func. Anal. 10, 266–306 (2000).
M. Bourdon, “Structure conforme au bord et flot géodésique d’un CAT(-1)-espace,” L’Einseignement Mathématique 41, 63–102 (1995).
S. Buyalo and V. Schroeder, Elements of Asymptotic Geometry, EMS Monographs in Mathematics, 209 pages (2007).
I. Chiswell, Introduction to Λ-Trees (World Scientific, Singapore, 2001).
T. Foertsch and V. Schroeder, “Hyperbolicity, CAT(-1)-spaces and Ptolemy inequality,” Math. Ann. 350 (2), 339–356 (2011).
B. Hughes, “Trees and ultrametric spaces: a categorical equivalence,” Advan. Math. 189, 148–191 (2004).
Z. Ibragimov, “Möbius maps between ultrametric spaces are local similarities,” Ann. Acad. Sci. Fenn.Math. 37, 309–317 (2012).
J. Väisälä, “Gromov hyperbolic spaces,” Expo.Math. 23 (3), 187–311 (2005).
Author information
Authors and Affiliations
Corresponding author
Additional information
The text was submitted by the authors in English.
Rights and permissions
About this article
Cite this article
Beyrer, J., Schroeder, V. Trees and ultrametric Möbius structures. P-Adic Num Ultrametr Anal Appl 9, 247–256 (2017). https://doi.org/10.1134/S207004661704001X
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S207004661704001X