%0 Journal Article %A Samperton, Eric G. %T Free actions on surfaces that do not extend to arbitrary actions on 3-manifolds %J Comptes Rendus. Mathématique %D 2022 %P 161-167 %V 360 %N G2 %I Académie des sciences, Paris %U http://archive.numdam.org/articles/10.5802/crmath.277/ %R 10.5802/crmath.277 %G en %F CRMATH_2022__360_G2_161_0