Changes between Initial Version and Version 1 of Ticket #14619, comment 7


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Timestamp:
05/20/13 13:24:09 (7 years ago)
Author:
dimpase
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  • Ticket #14619, comment 7

    initial v1  
    66what do you mean by "certificate"?
    77
    8 There is in fact and algebraic certificate of distance regularity, that is, the adjacency matrix A_k of the distance k graph of the original graph G is a polynomial in A_1 (the adjacency matrix of G). And these polynomials can be computed from the "intersection arrays". But that's a long story.
     8There is in fact an algebraic certificate of distance regularity, that is, the adjacency matrix A_k of the distance k graph of the original graph G is a polynomial in A_1 (the adjacency matrix of G). And these polynomials can be computed from the "intersection arrays". But that's a long story.