Jørgensen’s Inequality for Non-Archimedean Metric Spaces

  • J. Vernon Armitage
  • John R. Parker
Part of the Progress in Mathematics book series (PM, volume 265)


Jørgensen’s inequality gives a necessary condition for a non-elementary group of Möbius transformations to be discrete. In this paper we generalise this to the case of groups of Möbius transformations of a non-Archimedean metric space. As an application, we give a version of Jørgensen’s inequality for SL(2, ℚ p ).


Discrete group p-adic numbers 


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Copyright information

© Birkhäuser Verlag Basel/Switzerland 2007

Authors and Affiliations

  • J. Vernon Armitage
    • 1
  • John R. Parker
    • 1
  1. 1.Department of Mathematical SciencesUniversity of DurhamDurhamEngland

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