Posts tagged ‘Johnson scheme’

4-gonal family Algebraic graph theory algebraic groups arc-transitive graph Australian Mathematics and Statistics Crisis Bannai-Ito Conjecture beamer biquasiprimitive BLT-sets BN-pairs Buekenhout geometries buildings cages Cayley graphs chordal graph chromatic roots commuting graph conference coset geometries coxeter groups cubic graphs Curtis-Tits Theorem diagram geometries Diameter-Degree problem distance-regular graphs distance transitive graphs edge-primitive graph edge-transitive graph eggs elations generalised quadrangles elementary expository flocks flow polynomial generalised hexagons generalised polygons generalised quadrangles graph graphs half-arc transitive graph hyperovals incidence geometries integration Johnson scheme journals Knarr construction latex Moore graphs National Curriculum O'Nan-Scott Theorem ovals ovoid ovoids partial geometry Payne derivation PDF perfect code perp-systems polar spaces primitive permutation group q-clans quasiprimitive quotients rank 3 regular subgroups root systems s-arc-transitive graphs Secondary school maths semisymmetric graph strongly regular graph symmetric group symplectic group translation generalised quadrangles triality Weiss conjecture