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On the minimality of Hamming compatible metrics

Information Theory 2012-01-10 v1 math.IT

Abstract

A Hamming compatible metric is an integer-valued metric on the words of a finite alphabet which agrees with the usual Hamming distance for words of equal length. We define a new Hamming compatible metric, compute the cardinality of a sphere with respect to this metric, and show this metric is minimal in the class of all "well-behaved" Hamming compatible metrics.

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Cite

@article{arxiv.1201.1633,
  title  = {On the minimality of Hamming compatible metrics},
  author = {Parsa Bakhtary and Othman Echi},
  journal= {arXiv preprint arXiv:1201.1633},
  year   = {2012}
}

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9 pages