Hyperbolic is the only Hilbert geometry having circumcenter or orthocenter generally
Crossref DOI link: https://doi.org/10.1007/s13366-014-0233-3
Published Online: 2015-01-04
Published Print: 2016-03
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Kozma, József
Kurusa, Árpád
Text and Data Mining valid from 2015-01-04