Some results on the Krein parameters of an association scheme

We consider association schemes with d classes and the underlying Bose- Mesner algebra, A. Then, by taking into account the relationship between the Hadamard and the Kronecker products of matrices and making use of some matrix techniques over the idempotents of the unique basis of minimal orthogonal...

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Detalhes bibliográficos
Autor principal: Mano, Vasco Moço (author)
Outros Autores: Martins, Enide Andrade (author), Vieira, Luís Almeida (author)
Formato: bookPart
Idioma:eng
Publicado em: 2016
Assuntos:
Krein parameters
Association schemes
Texto completo:http://hdl.handle.net/10773/15014
País:Portugal
Oai:oai:ria.ua.pt:10773/15014
Descrição
Resumo:We consider association schemes with d classes and the underlying Bose- Mesner algebra, A. Then, by taking into account the relationship between the Hadamard and the Kronecker products of matrices and making use of some matrix techniques over the idempotents of the unique basis of minimal orthogonal idempotents of A , we prove some results over the Krein parameters of an association scheme.

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