Steiner triple ( quadruple ) systems of small ranks embedded into perfect ( extended perfect ) binary codes 1

نویسنده

  • Darya I. Kovalevskaya
چکیده

It is shown that a class of Steiner triple systems of order 2−1, obtained by some special switchings from the Hamming Steiner triple system, is embedded into some perfect code, constructed by known switchings of ijk-components from the binary Hamming code. The number of Steiner triple systems of order n and rank less or equal n− log(n + 1) + 2, embedded into perfect binary codes of length n, is given. Similar results are obtained for Steiner quadruple systems.

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تاریخ انتشار 2012