Duality between Hyperbolic and de Sitter Geometry

Simple item page
dc.creatorAsmus, Immanuel
dc.date2008-10-29
dc.date2008-10-30
dc.date.accessioned2026-07-07T10:13:56Z
dc.date.available2026-07-07T10:13:56Z
dc.descriptionIn this paper we describe trigonometry on the de Sitter surface. For that a characterization of geodesics is given, leading to various types of triangles. We define lengths and angles of these. Then, transferring the concept of polar triangles from spherical geometry into the Minkowski space, we relate hyperbolic with de Sitter triangles such that the proof of the hyperbolic law of cosines for angles becomes much clearer and easier than it is traditionally. Furthermore, polar triangles turn out to be a powerful tool for describing de Sitter trigonometry.
dc.description32 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0810.5303
dc.identifierhttp://arxiv.org/abs/0810.5303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/172710
dc.subjectDifferential Geometry
dc.subject53A35; 53B30
dc.titleDuality between Hyperbolic and de Sitter Geometry
dc.typetext

Files

Collections

arXiv