%0 Journal Article %A Thumann, Werner %T L2–invisibility of symmetric operad groups %J Algebraic and Geometric Topology %D 2016 %P 2229-2255 %V 16 %N 4 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2016.16.2229/ %R 10.2140/agt.2016.16.2229 %F 10_2140_agt_2016_16_2229