There does not exist a strongly regular graph with parameters \((1911, 270, 105, 27)\)

DOI10.37236/10675zbMath1491.05201arXiv2109.04000OpenAlexW3196786358MaRDI QIDQ2138556

Jack H. Koolen, Brhane Gebremichel

Publication date: 12 May 2022

Published in: The Electronic Journal of Combinatorics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2109.04000

zbMATH Keywords

strongly regular graphsnon-existencesmallest eigenvalueinterlacing

Mathematics Subject Classification ID

Association schemes, strongly regular graphs (05E30) Graphs and linear algebra (matrices, eigenvalues, etc.) (05C50)

Cites Work

• Spectra of graphs
• Augmenting the Delsarte bound: a forbidden interval for the order of maximal cliques in strongly regular graphs
• Maximality of Seidel matrices and switching roots of graphs
• Strongly Regular Graphs
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