Related papers: Regev's theorem via rectangles

This paper has been withdrawn by the author, due to a crucial error in page 5.

This paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the author, due to a crucial error in the proof of Lemma 3.1.

This paper has been withdrawn due to a crucial error in the proof of the main theorem

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn by the authors, due a crucial error in the proof of the main theorem.

This paper has been withdrawn by the author due to a crucial sign error in equation 1.

This paper has been withdrawn due to an error, and no further revisions will be made.

This paper has been withdrawn by the author, due to an error in the proof of Theorem 3.8.

This paper has been withdrawn by the authors, due a crucial mistake in Lemma 2

The paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the authors due to an error.

This paper has been withdrawn by the author due to a crucial error in last part of proof.

This paper has been withdrawn by the author due to a crucial error in the proof of Theorem 1.

This paper has been withdrawn by the author due to a crucial sign error in equation 1.

This paper has been withdrawn because of serious errors.

This paper has been withdrawn.

This paper has been withdrawn by the author due to a crucial error in the proof of Lemma 2.2.

This paper has been withdrawn by the author, due to a significant error in section 4.3.1.

This paper has been withdrawn by the author due to a mistake in the proof of the main theorem.