We show that linear codes over Z pm satisfy two extended versions of Wei's Duality Theorem with respect to generalized Hamming weights (GHW) and a natural extension of GHW. Our results use a different approach to obtaining Wei-type duality theorems by extending the well-known relation between GHW and column multiplicities for linear codes over finite fields. We also present several new bounds for the minimum Lee distance of linear codes over Z pm that arise from the Singleton-type bound with respect to GHW. Our bounds generalize and improve several existing minimum Lee distance bounds.
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Hopein Christofen Tang (2024) studied this question.
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