Euclidean Jordan Algebras, Symmetric Association Schemes, Strongly Regular Graphs, and Modified Krein Parameters of a Strongly Regular Graph

In this paper, in the environment of Euclidean Jordan algebras, we establish some inequalities over the Krein parameters of a symmetric association scheme and of a strongly regular graph. Next, we define the modified Krein parameters of a strongly regular graph and establish some admissibility condi...

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Veröffentlicht in:Symmetry (Basel) 2023-11, Vol.15 (11), p.1997
1. Verfasser: Vieira, Luís Almeida
Format: Artikel
Sprache:eng
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Zusammenfassung:In this paper, in the environment of Euclidean Jordan algebras, we establish some inequalities over the Krein parameters of a symmetric association scheme and of a strongly regular graph. Next, we define the modified Krein parameters of a strongly regular graph and establish some admissibility conditions over these parameters. Finally, we introduce some relations over the Krein parameters of a strongly regular graph.
ISSN:2073-8994
2073-8994
DOI:10.3390/sym15111997