Endomorphism rings via minimal morphisms

Manuel Cortés-Izurdiaga, Pedro A. Guil Asensio, D. Keskin Tütüncü +1

We prove that if $u:K\to M$ is a left minimal extension, then there exists an isomorphism between two subrings, ${\text{End}}_R^M(K)$ and ${\text{End}}_R^K(M)$ of $\textrm…