Search

Your search keyword '"Sho Suda"' showing total 2 results
Start Over Author "Sho Suda" Journal designs, codes and cryptography
2 results on '"Sho Suda"'

1. Linked systems of symmetric group divisible designs of type II

Author

Hadi Kharaghani and Sho Suda

Subjects
Applied Mathematics, 010102 general mathematics, 0102 computer and information sciences, Graeco-Latin square, 01 natural sciences, Computer Science Applications, Combinatorics, symbols.namesake, Association scheme, 010201 computation theory & mathematics, Symmetric group, symbols, Affine transformation, 0101 mathematics, Equivalence (formal languages), Mathematics
Abstract

Linked systems of symmetric group divisible designs of type II are introduced, and several examples are obtained from affine resolvable designs and a variant of mutually orthogonal Latin squares. Furthermore, an equivalence between such symmetric group divisible designs and some association schemes with 5-classes is provided.

Published
2019
Full Text
View/download PDF

2. A two-fold cover of strongly regular graphs with spreads and association schemes of class five

Author

Sho Suda

Subjects
Discrete mathematics, Vertex (graph theory), Strongly regular graph, Mathematics::Operator Algebras, Applied Mathematics, Two-graph, 020206 networking & telecommunications, 0102 computer and information sciences, 02 engineering and technology, 01 natural sciences, Computer Science Applications, Combinatorics, Association scheme, 010201 computation theory & mathematics, Chordal graph, FOS: Mathematics, 0202 electrical engineering, electronic engineering, information engineering, Mathematics - Combinatorics, Partition (number theory), Combinatorics (math.CO), Mathematics
Abstract

A spread of strongly regular graphs is a partition of the vertex set by Delsarte cliques. We consider imprimitive association schemes of class four which are two-fold covers of strongly regular graphs with spreads. It will be shown that a two-fold cover of a strongly regular graph with a spread provides a five class fission scheme of the imprimitive scheme of class four.

Published
2014
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results