%0 Journal Article %A Octave Lacourte %T Signature for piecewise continuous groups %J Groups, geometry, and dynamics %D 2022 %P 75-84 %V 16 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4171/ggd/664/ %R 10.4171/ggd/664 %F 10_4171_ggd_664