Related papers: Fermat Curves and Brauer-Manin Obstructions

The paper is being withdrawn. A new submission will follow.

This paper has been withdrawn by the authors.

This paper has been withdrawn.

The paper has been withdrawn by the author due to a the manuscript error.

This paper has been withdrawn by the authors due to an error.

This paper has been withdrawn by the author due to errors.

This paper has been withdrawn by the authors, because of a crucial gap in the proof of the main theorem.

The paper is being withdrawn because of some theoretical inconsistencies.

This paper has been withdrawn by the author due to an error in equations 39 and 41.

This paper has been withdrawn by the author(s), due a crucial sign error in conclusion .

The paper has been withdrawn.

This paper has been withdrawn by the author.

Withdrawn due to extensions and submission as another paper.

This paper has been withdrawn by the author

This paper has been withdrawn by the authors.

The paper has been withdrawn

This paper has been withdrawn by the author due to a mistake in the proof of the main theorem.

The paper has been withdrawn.

This paper has been withdrawn by the author because there are some typos in proofs.

This paper has been withdrawn by the author due to a crucial sign error in equation (5).