Seidel adjacency matrix

sex on fireeeeeeThe eigenvalue properties of the Seidel matrix are valuable in the study of strongly regular graphs.

See also

• Adjacency matrix

References

• van Lint, J.H., and Seidel, J.J. (1966), Equilateral point sets in elliptic geometry. Indagationes Mathematicae, vol. 28 (= Proc. Kon. Ned. Aka. Wet. Ser. A, vol. 69), pp. 335-348.
• Seidel, J. J. (1976), A survey of two-graphs. In: Colloquio Internazionale sulle Teorie Combinatorie (Proceedings, Rome, 1973), vol. I, pp. 481-511. Atti dei Convegni Lincei, No. 17. Accademia Nazionale dei Lincei, Rome.
• Seidel, J.J. (1991), ed. D.G. Corneil and R. Mathon, Geometry and Combinatorics: Selected Works of J.J. Seidel. Boston: Academic Press. Many of the articles involve the Seidel matrix.
• Seidel, J. J. "Strongly Regular Graphs with (-1,1,0) Adjacency Matrix Having Eigenvalue 3." Lin. Alg. Appl. 1, 281-298, 1968.