Spanish Grafo de Levi Cited by user Wiki LIC on 06 Oct 2023 En combinatorial mathematics, un gráfico de Levi o un gráfico de incidencia es un grafo bipartito asociado con un estructura de incidencia.
English Arrangement of lines Cited by user David Eppstein on 01 Jan 2023 In geometry, an arrangement of lines is the subdivision of the plane formed by a collection of lines.