On a Question of Connes and Zagier Regarding Parallelograms Inscribed in a Pair of Confocal Ellipses

DOI10.4169/000298910X521706zbMATH Open1207.51011OpenAlexW2402331172MaRDI QIDQ3061292

Nicolae Anghel

Publication date: 14 December 2010

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

Full work available at URL: https://doi.org/10.4169/000298910x521706

zbMATH Keywords

ellipsebilliardsovalballisticsconfocalinscribed parallelogramMonge orthoptic curve

Mathematics Subject Classification ID

Elementary problems in Euclidean geometries (51M04) Inequalities and extremum problems in real or complex geometry (51M16) Plane and solid geometry (educational aspects) (97G40)

Related Items (1)

Parallelograms inscribed in a curve having a circle as π/2-isoptic

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