An analogue of Ptolemy's theorem and its converse in hyperbolic geometry

DOI10.2140/pjm.1970.34.817zbMath0198.25601OpenAlexW2073352396MaRDI QIDQ2539959

J. E. Valentine

Publication date: 1970

Published in: Pacific Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2140/pjm.1970.34.817

zbMATH Keywords

foundations of geometry

Related Items (4)

Generalizations of Casey's theorem for higher dimensions ⋮ The Four Point Condition: An Elementary Tropicalization of Ptolemy’s Inequality ⋮ Über Ptolemäische Sätze ⋮ Volumes of polyhedra in non-Euclidean spaces of constant curvature

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