A note on the minimum Lee distance of certain self-dual modular codes

Bram van Asch; Frans Martens

doi:10.3934/amc.2012.6.65

Article Contents

2012, Volume 6, Issue 1: 65-68. Doi: 10.3934/amc.2012.6.65

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A note on the minimum Lee distance of certain self-dual modular codes

Bram van Asch^1, and
Frans Martens^1,

1.
Department of Mathematics and Computing Science, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven

Received: August 31, 2010

Revised: September 30, 2011

Published: January 2012

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Abstract

In a former paper we investigated the connection between $p$-ary linear codes, $p$ prime, and theta functions. Corresponding to a given code a suitable lattice and its associated theta function were defined. Using results from the theory of modular forms we got an algorithm to determine an upper bound for the minimum Lee distance of certain self-dual codes. In this note we generalize this result to $m$-ary codes, where $m$ is either a power of a prime, or $m$ is square-free. If $m$ is of a different form the generalization will not work. A class of examples to illustrate this fact is given.

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Mathematics Subject Classification: Primary: 11F27, 11H71, 94B05; Secondary: 11F11, 94B65.

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References

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