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On the separability of cyclotomic schemes over finite field

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 نشر من قبل Ilia Ponomarenko
 تاريخ النشر 2020
  مجال البحث
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 تأليف Ilia Ponomarenko




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It is proved that with finitely many possible exceptions, each cyclotomic scheme over finite field is determined up to isomorphism by the tensor of 2-dimensional intersection numbers; for infinitely many schemes, this result cannot be improved. As a consequence, the Weisfeiler-Leman dimension of a Paley graph or tournament is at most 3 with possible exception of several small graphs.



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