2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70118Let $p$ be an odd prime and $G$ the finite cyclic group of order $p$. We use the Casson-Walker-Lescop invariant to find a necessary condition for a three-manifold to have an action of $G$ with a circle as the set of fixed points.19 pages, 2 figuresGeometric Topology57M27; 57M25text