A Porism for Cyclic Quadrilaterals, Butterfly Theorems, and Hyperbolic Geometry

DOI10.4169/amer.math.monthly.122.5.467zbMath1335.51022arXiv1408.2247OpenAlexW2963690760WikidataQ58288258 ScholiaQ58288258MaRDI QIDQ3466035

Ivan Izmestiev

Publication date: 29 January 2016

Published in: The American Mathematical Monthly (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1408.2247

zbMATH Keywords

cross-ratioscyclic quadrilateralsprojective butterfly theorem

Mathematics Subject Classification ID

Elementary problems in hyperbolic and elliptic geometries (51M09)

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