Self-Dual Codes over Z_2xZ_4

J. Borges, S. T. Dougherty, C. Fernandez-Cordoba

Self-dual codes over ${\mathbb{Z}}_2\times {\mathbb{Z}}_4$ are subgroups of ${\mathbb{Z}}_2^{\alpha }\times {\mathbb{Z}}_4^{\beta }$ that are equal to their orthogonal under an inner-product that relates to the binary Hamming scheme. Thr…