%0 Journal Article %T Bounded cochains on 3-manifolds %A Danny Calegari %J Mathematics %D 2001 %I arXiv %X We study the large-scale geometry of 3-manifolds with nontrivial 2-dimensional bounded cohomology, with a view to proving a weak version of the geometrization conjecture for such manifolds. %U http://arxiv.org/abs/math/0111270v2