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arxiv: 1212.6453 · v1 · pith:7NFCD5VNnew · submitted 2012-12-28 · 🧮 math.CO

New Inequalities for q-ary Constant-Weight Codes

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keywords codesconstant-weightinequalitiesapplyingcountingdelsartedoubleimprovements
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Using double counting, we prove Delsarte inequalities for $q$-ary codes and their improvements. Applying the same technique to $q$-ary constant-weight codes, we obtain new inequalities for $q$-ary constant-weight codes.

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