We prove that a free action on a lens space is standard. This extends to lens spaces earlier work of Maher and Rubinstein on actions on . It follows using previously known results that a free action of a group of order on is standard.
Joseph Maher. "Period three actions on lens spaces." Algebr. Geom. Topol. 7 (4) 2021 - 2102, 2007. https://doi.org/10.2140/agt.2007.7.2021