相关论文: String amplitudes and the Penrose limit

This paper has been withdrawn by the authors. I will do the major revision.

This paper has been withdrawn pending revision.

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This paper has been withdrawn by the authors due to an error.

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn by the authors. This is due to the fact that it has been substantially revised. As a consequence title and aim of the contents

This paper has been withdrawn by the author.

This paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors

This paper had been withdrawn because the prime reported effect had not been confirmed in further investigations (see arXiv:0812.4488 [hep-lat]).

This paper has been withdrawn by the author.

This paper has been withdrawn by the author, since the author does not have enough time to answer every questions on this result.

The paper has been withdrawn by the author.

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This paper has been withdrawn by the author(s), due to double submission. You can find it under: physics/0208019

The paper was withdrawn by the author. Further research is needed.

This paper is withdrawn because the results in the paper are included in a paper to be published in Mathematical and Computer Modelling.

This paper has been withdrawn by the author(s) in the light of several other works available and due to a misunderstanding in the authorships.

This paper has been withdrawn by the author due to a coming paper completely superseding it.