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Remarks on some one-ended groups

  • Daniele Ettore Otera EMAIL logo
Published/Copyright: October 24, 2025
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Abstract

In this note, we study the condition of being one-ended for a particular class of discrete groups, namely groups acting freely and co-compactly on some CAT(0) square complexes. In particular, we furnish an algorithm that associates to a one-ended squared group another square complex which is “smaller” and more tractable than the one given by the definition of the group, in particular with nicer local connectivity conditions.

MSC 2010: 20F67; 20-08
  1. (Communicated by Anatolij Dvurečenskij)

References

[1] Brady, N.—Mccammond, J.—Meier, J.: Local-to-asymptotic topology for cocompact CAT(0) complexes, Topology Appl. 131 (2003), 177–188.Search in Google Scholar

[2] Brady, N.—Meier, J.: Connectivity at infinity for right angled Artin groups, Trans. Am. Math. Soc. 353 (2001), 117–132.Search in Google Scholar

[3] Bridson, M. R.—Haefliger, A.: Metric Spaces of Non-Positive Curvature. Grundlehren Math. Wiss., vol. 319; Springer-Verlag, Berlin, 1999.Search in Google Scholar

[4] Bridson, M. R.—Wise, D. T.: VH-complexes, towers and subgroups of F × F, Math. Proc. Camb. Philos. Soc. 126 (1999), 481–497.Search in Google Scholar

[5] Caprace, P.-E.—Sageev, M.: Rank rigidity for CAT(0) cube complexes, Geom. Funct. Anal. 21(4) (2011), 851–891.Search in Google Scholar

[6] Gromov, M.: Hyperbolic groups. In: Essays in group theory, Mathematical Sciences Research Institute Publications, Vol. 8, New York: Springer-Verlag, 1987, pp. 75–263.Search in Google Scholar

[7] Gromov, M.: Asymptotic invariants of infinite groups. In: Geometric group theory, Vol. 2, Math. Society Lecture Note Series 182, Cambridge University Press, 1993, pp. 1–295.Search in Google Scholar

[8] Otera, D. E.: Topological tameness conditions of groups. Results and developments, Lith. Math. J. 3 (2016), 357–376.Search in Google Scholar

[9] Sageev, M.: Ends of group pairs and non-positively curved cube complexes, Proc. London Math. Soc. s3-71 (1995), 585–617.Search in Google Scholar

[10] Wise, D. T.: Complete square complexes, Comment. Math. Helv. 82 (2007), 683–724.Search in Google Scholar

Received: 2025-05-03
Accepted: 2025-07-16
Published Online: 2025-10-24
Published in Print: 2025-10-27

© 2025 Mathematical Institute Slovak Academy of Sciences

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