Related papers: Free algebras and the Freiheitssatz

This paper has been temporarily withdrawn for corrections.

The paper has been withdrawn by the author.

This paper has being withdrawn by the authors due to an error in the conclusion.

Paper withdrawn due to error.

This paper has been withdrawn by the author(s), due a mistake of factor 1/2.

This paper has been withdrawn by the author due to imprecisions which must conduce to wrong results.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author.

This paper has been withdrawn, as all conjectures (and one claim) have been proven incorrect. Some of what remains may eventually reappear in a different context.

This paper has been withdrawn by the authors due to new experimental results.

This paper has been withdrawn by the author due to a crucial argument error at p.10.

The paper has been withdrawn due to an error in the main theorem.

The paper has been withdrawn by the authors for modification.

This paper has been withdrawn.

This paper has been withdrawn by the author due to an erro thereon line -2 of page 4.

An elementary gap in the proof of corollary 2.2 was found, the claim in the first version of the paper is thus retracted.

This paper has been withdrawn by the author. Much simpler proof of the main result was obtained which led to major changes in the presentation.

This paper has been withdrawn by the corresponding author because the newest version is now published in Journal of Discrete Algorithms.

This paper has been withdrawn by the authors due to some fatal errors in the analysis.

This paper has been withdrawn by the author, since the author does not have enough time to answer every questions on this result.