Reversible and other generalised torsion elements in Seifert-fibered spaces

Anushree Das, Debattam Das

An element $a$ in a group $\hat{I}“$ is called \emph{reversible} if there exists $g\in \hat{I}“$ such that $ga{g}^{-1}=a^{-1}$. The reversible elements are also known as `real elements' or `rec…