Related papers: The Teichm\"uller group is good

Withdrawn paper because the results are published in math.AT/0308054 and math.AT/0308063.

This paper has been withdrawn by the author, due to a crucial error in the proof of Lemma 3.1.

The authors have withdrawn this paper.

This paper has been withdrawn by the authors, due to a crucial error.

This paper has been withdrawn due to a crucial error in the proof of the main theorem

This paper has been withdrawn because it is a duplicate of [math/0609208].

The paper has been withdrawn by the author.

This paper has been withdrawn by the author(s), due to a crucial error in eq. 6.

This paper has been withdrawn by the authors due to an error in the main theorem.

This paper has been withdrawn.

This paper has been withdrawn by the authors.

This paper has been withdrawn by the author, due an error in claim 1.

This paper has been withdrawn and no version of it will ever be published.

This paper has been withdrawn by the author because there is a gap in Lemma 9.

This paper has been withdrawn by the author because Lemma 3 is incorrect. This mistake is crucial in this paper.

This paper was withdrawn (temporarily?) by the author since an error needs to be corrected.

This paper has been withdrawn by the author, due a crucial error in the main idea.

This paper has been withdrawn

This paper was withdrawn by the author. It turns out that similar ideas have been presented before. The author apologizes.

This paper has been withdrawn by the author. The conjecture follows from the finiteness of group von Neumann algebras.