Coordinate system and combinatorial objects (an example of a generalized quadrangle)

• Date: 1994
• Main Authors: Medvedev, V. K., Медведев, В. К.
• Format: Article
• Language: Russian; English
• Published: Institute of Mathematics, NAS of Ukraine 1994
• Online Access: https://umj.imath.kiev.ua/index.php/umj/article/view/5715
• Journal Title: Ukrains’kyi Matematychnyi Zhurnal

By using a generalized quadrangle as an example, we verify the assumption that coordinate systems (different from the standard Cartesian coordinate system) exist not only in an arbitrary projective plane, where they are determined by a nondegenerate quadrangle, but also in some other combinatorial o...