A proposta deste trabalho é aprofundar os estudos sobre a estrutura algébrica dos anéis. Neste sentido tratamos dos Domínios de Fatoração Única (UFD), Domínios Euclidianos e do anel dos Inteiros Gaussianos, bem como ...

We propose new classes of linear codes over integer rings of quadratic extensions of Q, the field of rational numbers. The codes are considered with respect to a Mannheim metric, which is a Manhattan metric modulo a ...

We propose new classes of linear codes over integer rings of quadratic extensions of Q, the field of rational numbers. The codes are considered with respect to a Mannheim metric, which is a Manhattan metric modulo a ...

Signal constellations having lattice structure have been studied as meaningful means for signal transmission over Gaussian channel. Usually the problem of finding good signal constellations for a Gaussian channel is ...