Samenvatting
We characterize a 55-point graph by its spectrum $ 4^1, (-2)^{10}, (-1 \pm \sqrt{3})^{10}, ((3 \pm \sqrt{5})/2)^{12} $.
No interlacing is used: examination of tr A^m for m = 7 together with study of the representation in the eigenspace for the eigenvalue -2 suffices.
Originele taal-2 | Engels |
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Pagina's (van-tot) | 65-69 |
Tijdschrift | Designs, Codes and Cryptography |
Volume | 65 |
Nummer van het tijdschrift | 1-2 |
DOI's | |
Status | Gepubliceerd - 2012 |