English Cayley–Klein metric Cited by user Citation bot on 12 Jul 2019 In mathematics, a Cayley–Klein metric is a metric on the complement of a fixed quadric in a projective space which is defined using a cross-ratio.
Portuguese Fórmula de Laguerre Cited by user Luizpuodzius on 05 Apr 2018 A fórmula de Laguerre (nomeada em homenagem a Edmond Laguerre) fornece o ângulo agudo
English Beltrami–Klein model Cited by user DOI bot on 28 May 2008 In geometry, the Beltrami–Klein model, also called the projective model, Klein disk model, and the Cayley–Klein model, is a model of n-dimensional hyperbolic geometry in…