Related papers: Affine surfaces with isomorphic cylinders

This paper has been withdrawn by the authors, because of serious experimental problems.

This submission has been withdrawn by the author and superseded by arXiv:0804.0744.

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This article has been withdrawn.

This paper has been withdrawn since it contains some discrepancy with othe authers's recent result. We will not post this until this discrepancy is resolved.

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This paper has been temprally withdrawn by the author

This paper has been withdrawn by the authors because M. Aschenbrenner pointed out that the proof of theorem 3.1 was incorrect.

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This paper has been withdrawn by the author.

This paper has been withdrawn

This paper has been withdrawn by the authors due to some fatal errors in the analysis.

This paper has been withdrawn by the author.

This paper was withdrawn by the author.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author.

The paper has been withdrawn by the author.

This paper has been withdrawn

This paper has been withdrawn.

This paper has been withdrawn by the author because overcame by arXiv:0910.4694