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On the number of resolvable Steiner triple systems of small 3-rank

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 نشر من قبل Denis Krotov
 تاريخ النشر 2019
  مجال البحث الهندسة المعلوماتية
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In a recent work, Jungnickel, Magliveras, Tonchev, and Wassermann derived an overexponential lower bound on the number of nonisomorphic resolvable Steiner triple systems (STS) of order $v$, where $v=3^k$, and $3$-rank $v-k$. We develop an approach to generalize this bound and estimate the number of isomorphism classes of STS$(v)$ of rank $v-k-1$ for an arbitrary $v$ of form $3^kT$.

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