Maximal actions of finite 2-groups on Z2-homology 3-spheres
Mattia Mecchia · Fundamenta Mathematicae · 2004
It is known that a finite 2-group acting on a ${{\mathbb Z}}_2$-homology 3-sphere has at most ten conjugacy classes of involutions; the action of groups with the maximal number of conjugacy classes of involutions is strictly related to some questions conc