Abstract

For any prime p and n ⋛ 3, we examine p-ary linear codes generated by incidence matrices of two classes of graphs, H n and Γ n where H n−1 is an induced subgraph of Γ n . Γ n is a subgraph of the union of the categorical product of triangular graphs T n and complete graphs K n , and complements of triangular graphs T n and K n , where the union of graphs is as defined in [4]. For the codes of H n , we exhibit permutation decoding sets of order n for full error correction. Their size is only twice the lower bound due to Gordon [7]. We also consider partial permutation decoding for the binary codes from Γ n .

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