%0 Journal Article
%T Topological extension of Calabi invariants and non-simpleness of the area preserving homeomorphism group of the disc
%A Yong-Geun Oh
%J Mathematics
%D 2006
%I arXiv
%X This paper has been withdrawn by the author due to a critical error in the proof of Theorem 5.4 on which the proof of the main theorem on the non-simplenss was based.
%U http://arxiv.org/abs/math/0605528v2