Laura Orozco

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2 papers · 1 filter

math.RA2026

Very good gradings on structural matrix rings

Patrik Lundström, Johan Öinert, Laura Orozco +1

Let $R$ be a nonzero associative unital ring, let $G$ be a group, and let $ρ$ be a preorder on ${1, \dots, n}$ . A $G$ -grading on $ρ$ induces a very good $G$ -grading on the structu…

math.RA2023

Very good gradings on matrix rings are epsilon-strong

Patrik Lundström, Johan Öinert, Laura Orozco +1

We investigate properties of group gradings on matrix rings $M_{n} (R)$ , where $R$ is an associative unital ring and $n$ is a positive integer. More precisely, we introduce very good…