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Maximum distance separable poset codes
Authors:Jong Yoon Hyun  Hyun Kwang Kim
Institution:(1) Department of Mathematics, Pohang University of Science and Technology, Pohang, 790–784, The Republic of Korea
Abstract:We derive the Singleton bound for poset codes and define the MDS poset codes as linear codes which attain the Singleton bound. In this paper, we study the basic properties of MDS poset codes. First, we introduce the concept of I-perfect codes and describe the MDS poset codes in terms of I-perfect codes. Next, we study the weight distribution of an MDS poset code and show that the weight distribution of an MDS poset code is completely determined. Finally, we prove the duality theorem which states that a linear code C is an MDS $${\mathbb{P}}$$ -code if and only if $${C^\perp}$$ is an MDS $${\widetilde{\mathbb{P}}}$$ -code, where $${C^\perp}$$ is the dual code of C and $${\widetilde{\mathbb{P}}}$$ is the dual poset of $${\mathbb{P}.}$$
Keywords:Maximum distance separable code  Poset code  Discrete Poisson summation formula  Moebius inversion formula
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