Related papers: Single vortex in a 2D optical lattices

Paper withdrawn by the author.

The paper has been withdrawn by the authors

This paper has been withdrawn by the author.

This paper has been withdrawn by the author due to the incomplete results.

This paper has been withdrawn by the author.

This paper has been withdrawn pending revision.

This paper has been withdrawn due to its publication

This paper has been withdrawn by the author, due to errors in the figures.

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn by the author.

This article has been withdrawn due to an error in a proof of the main result.

This paper has been withdrawn by the authors due to a gap in the proof of the main result (in 5.3).

Paper withdrawn. Replaced by by gr-qc/0212077 .

This paper has been withdrawn by the author due to essential mistakes in some previous versions.

This paper has been withdrawn at the author's request.

This paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the author

This paper has been withdrawn.

This paper has been withdrawn by the author.

This paper has been withdrawn.