A note on completeness in the theory of strongly clean rings

Abstract

Many authors have investigated the behavior of strong cleanness under certain ring extensions. In this note, we prove that if $R$ is a ring which is complete with respect to an ideal $I$ and if $x$ is an element of $R$ whose image in $R/I$ is strongly $\pi$-regular, then $x$ is strongly clean in $R$.

5 pages