Related papers: On the zero-temperature limit of one-dimensional G…

This paper has been withdrawn by the author due to a crucial error in the proof of Theorem 1.

This paper has been withdrawn by the authors due to some fatal errors in the analysis.

This paper has been withdrawn by the authors, due a crucial error in Sec. 3.

This paper has been withdrawn.

This paper has been withdrawn. It was an early draft submitted prematurely in error. A complete version is to be submitted shortly.

This paper has been withdrawn by the authors. We have discovered an error in the evaluation of the diagram, which invalidates our conclusion.

This paper has been withdrawn by the authors, due a crucial mistake in Lemma 2

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn, because relevant publications, related to the subject of the paper, were overlooked by the author.

This paper has been withdrawn by the author due to a crucial sign error in equation 1.

This paper has been withdrawn because of serious errors.

This paper has been withdrawn by the author due to a crucial error.

This paper has being withdrawn by the authors due to an error in the conclusion.

This paper has been withdrawn by the author due to a crucial sign error in equation 1

This paper has been withdrawn by the author(s), due a mistake of factor 1/2.

This paper has been withdrawn by the authors, due to a mistake pointed out by Lenny Ng and Josh Sabloff.

This paper has been withdrawn by the author due to a gap in the proof of the main result.

This paper has been withdrawn by the author, due a crucial error in the main idea.

This paper has been withdrawn for extensive revision.

This paper has been withdrawn by the authors due to a crucial error.