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Intersection numbers for coherent configurations and the spectrum of a graph |
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| Authors: | Colin D Walter |
| Institution: | Department of Mathematics, University College, Belfield, Dublin 4, Ireland |
| Abstract: | It is shown that the intersection numbers of a coherent configuration are closely related to the determinant of a generic matrix for the corresponding adjacency algebra. This is important as both concepts provide isomorphism invariants for graphs. |
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