Journal of Geometry

, 109:22 | Cite as

Straight projective-metric spaces with centres

  • Árpád Kurusa


It is proved that a straight projective-metric space has an open set of centres, if and only if it is either the hyperbolic or a Minkowskian geometry. It is also shown that if a straight projective-metric space has some finitely many well-placed centres, then it is either the hyperbolic or a Minkowskian geometry.


Projective-metric Central symmetry Minkowski geometry Hilbert geometry 

Mathematics Subject Classification

51F99 53A35 52A20 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Bolyai InstituteUniversity of SzegedSzegedHungary

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