Non-norm criteria and optimal $2\times 2$ space-time block codes over rings of integers of imaginary quadratic fields

Carina Alves, Eliton Mendonça Moro, Cintya Wink de Oliveira Benedito +1

Codes arising from algebraic structures over number fields lead naturally to determinant optimization problems governed by arithmetic invariants. In this paper, we investigate $2\t…