Database of small Schurian association schemes



This database contains the (not necessarily commutative) Schurian association schemes of order 2 to 48. The details of this database are reported in the paper "A census of small Schurian association schemes". The Schurian association schemes of order N are contained in the file "SchurianSchemesN". Each line of the file contains the list [ Relmat, Generators, TransitiveIdentification, CharacterTable, Multiplicities] where: - Relmat is the relation matrix describing an association scheme - Generators are permutations which generate the full automorphism group of the association scheme - TransitiveIdentification is the identification for the automorphism group in the transitive groups libraries of GAP and MAGMA - CharacterTable is the character table of the association scheme - The i-th entry of Multiplicities is the multiplicity of the character in the i-th row of the character table Note that some entries of the character tables use the GAP notation E(n) to describe a primitive n-th root of unity, meaning that they can be read directly by GAP but conversion may be required for use in other software packages.
Date made available14 Jun 2022

Cite this