%0 Journal Article
%T Stable commutator length in subgroups of PL(I)
%A Danny Calegari
%J Mathematics
%D 2006
%I arXiv
%X Let G be a subgroup of PL(I). Then the stable commutator length of every element of [G,G] is zero.
%U http://arxiv.org/abs/math/0607482v2