On Plotkin-Optimal Codes over Finite Frobenius Rings

نویسندگان

  • Marcus Greferath
  • Gary McGuire
  • Michael E. O’Sullivan
چکیده

We study the Plotkin bound for codes over a finite Frobenius ring R equipped with the homogeneous weight. We show that for codes meeting the Plotkin bound, the distribution on R induced by projection onto a coordinate has an interesting property. We present several constructions of codes meeting the Plotkin bound and of Plotkin-optimal codes. We also investigate the relationship between Butson-Hadamard matrices and codes over R meeting the Plotkin bound.

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تاریخ انتشار 2005