3 problems

Let $Q$ be a finite quiver, let $\widehat{Q}$ denote its Kronecker square, and let $L_{\mathbb K}(Q)$ be the Leavitt path algebra over a field $\mathbb K$. Let…

Let $Q$ be a quiver, let $\widehat{Q}$ denote its Kronecker square, and let $L_{\mathbb K}(Q)$ be the Leavitt path algebra over a field $\mathbb K$. Let…

Let $R$ be a ring, let $E(R_R)$ be the injective envelope of the right regular module, and call $R$ right generalized $R$-tight when every cyclic submodule of $E(R_R)$ embeds in a…