Related papers: String Causality

This paper has been withdrawn by the author because there are some typos in proofs.

This paper has been withdrawn by the author(s)

This paper has been withdrawn because the part concerning the definition of global hyperbolicity has already been included in an expanded and clearer way in gr-qc/0611138. The remainder will be also extended and posted.

Unfortunately, after an imprudent sumbission of the paper to the e-print archive, I discovered in it many serious mistakes. So I draw back it .

This paper has been withdrawn due to an error in the proof of Theorem 5.3.

This paper has been withdrawn by the author due to the presented idea is wrong.

The paper was withdrawn by the author.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

Higher-derivative corrections to the Einstein-Hilbert action are present in bosonic string theory leading to the potential causality violations recently pointed out by Camanho et al. We analyze in detail this question by considering…

This paper has been withdrawn by the author due to a crucial sign error.

This paper has been withdrawn by the author, due a crucial error in the main idea.

This paper was withdrawn by the authors.

This paper has been withdrawn by the authors. due fail of replacement of the paper. new version is hep-ph/0201214.

This paper has been withdrawn by the author(s), due a crucial sign error in conclusion .

This paper has been withdrawn by the authors due to crucial error in the main proof (located in Section 2.4). The authors apologize for any inconveniences.

This paper has been withdrawn by the author due to the incorrect argument for the security.

Withdrawn by arXiv administration because authors have forged affiliations and acknowledgements, and have not adequately responded to charges [hep-th/9912039] of unattributed use of verbatim material.

This paper has been withdrawn by the author due to some mistakes

This article has been withdrawn due to an error in a proof of the main result.

This paper has been withdrawn by the author because Lemma 3 is incorrect. This mistake is crucial in this paper.

This paper has been withdrawn by the author(s), due an error in the proof.