Related papers: String amplitudes and the Penrose limit

This paper is wrong and is therefore withdrawn.

This paper has been withdrawn by the author due to some errors.

This paper has been withdrawn by the author, due to a crucial error in the proof of Thm.1

This paper has been withdrawn by the author due to the paper does not belong to Condensed Matter field.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author due to a crucial mistakes.

This paper has been withdrawn by the author, due a critical mistake on page 3.

This paper has been withdrawn by the authors due to a crucial error.

The paper was withdrawn by the author. It contained various errors.

This paper has been withdrawn by the author due to an erro thereon line -2 of page 4.

This paper has been withdrawn by the author, due to a crucial error in the proof of Lemma 3.1.

This paper has been withdrawn

This paper has been withdrawn by the author due to the presented idea is wrong.

This paper has been withdrawn by the author, due to a crucial error in page 5.

This paper has been withdrawn by the author.

This paper has been withdrawn due to a sign error in the equation for F_11 which invalidates many results.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author due to an extended and largely modified version of the paper was published in arXiv (see arXiv:0807.3694, Disjoint minimal graphs).

This paper has been withdrawn by the author, since it had been the worse repetition of hep-ph/0302070.

This paper was withdrawn by the authors.