Linearity and Classification of ${\mathbb{Z}}_2{\mathbb{Z}}_4{\mathbb{Z}}_8$-Linear Hadamard Codes

Dipak K. Bhunia, Cristina Fernández-Córdoba, Mercè Villanueva

The ${\mathbb{Z}}_2{\mathbb{Z}}_4{\mathbb{Z}}_8$-additive codes are subgroups of ${\mathbb{Z}}_2^{{\alpha }_1}\times {\mathbb{Z}}_4^{{\alpha }_2}\times {\mathbb{Z}}_8^{{\alpha }_3}$. A $\mathbb{Z}_2\mathbb{Z}_4\mat…