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Optimum Linear Codes with Support Constraints over Small Fields (1803.03752v1)
Published 10 Mar 2018 in cs.IT and math.IT
Abstract: We consider the problem of designing optimal linear codes (in terms of having the largest minimum distance) subject to a support constraint on the generator matrix. We show that the largest minimum distance can be achieved by a subcode of a Reed-Solomon code of small field size. As a by-product of this result, we settle the GM-MDS conjecture of Dau et. al. in the affirmative.