Annals of Global Analysis and Geometry

, Volume 28, Issue 2, pp 201–209 | Cite as

Centers of Convex Subsets of Buildings

  • Andreas Balser
  • Alexander Lytchak


We prove that two-dimensional convex subsets of spherical buildings are either buildings or have a center.

Key Words

isometry groups fixed points CAT(1)-spaces buildings 


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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  1. 1.Mathematisches Institut, LMU MünchenMunichGermany
  2. 2.Mathematisches InstitutUniversität BonnBonnGermany

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