Related papers: Geometric Auslander criterion for flatness

Paper withdrawn; ask me if you would like to know the details.

This paper has been withdrawn by the author due to a crucial sign error in Theorem 3.4.

This paper has been withdrawn by the author due to some errors.

This paper has been withdrawn by the author due to rewritting and skipping crucial sign errors.

This paper has been withdrawn by the author, due to a crucial error in the proof of Thm.1

This paper has been withdrawn by the author since the proof of Lemma 8 is not correct.

This paper has been withdrawn by the authors due to an error.

This paper has been withdrawn. It will be split into two separate papers. New results will be added in both papers.

This paper has been withdrawn by the author due to a crucial error in the proof of Theorem 1.

This paper has been withdrawn by the author due to a mistake in the proof of the main theorem.

This paper is withdrawn due to a mistake. The revised version with a new tiltle can be found in hep-ph/0502199.

This paper has been withdrawn by the author due to an erro thereon line -2 of page 4.

This paper has been withdrawn by the author due to a serious mistake on Lemma 2.4.

This paper has been withdrawn by the author due to a errors in figure 3,4

This paper has been withdrawn due to an error, and no further revisions will be made.

This paper has been withdrawn by the author(s), due a crucial error in Eqn. 30.

This paper has been withdrawn by the author, due an error in the proof of Proposion 2.13.

This paper has been withdrawn by the author. There is an error on page 3 in the last inequality before Lemma 1.1.

This paper has been withdrawn by the author due to a crucial argument error at p.10.

The paper was withdrawn because of its significant overlap with a paper appeared recently.