相关论文: Annelidan rings

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This paper has been withdrawn by the author, since it is now a part of "Classical aspects of lightlike dimensional reduction" Class.Quant.Grav.23:7085-7110, 2006, gr-qc/0610011

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The paper has been withdrawn by change of content and some errors in the examples.

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This paper has been withdrawn by the author due to incomplete interpretation for the results.

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This paper has been withdraw by the author due to adding more modeling results.

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This paper has been removed by arXiv administrators because of excessive overlap with gr-qc/0506062.

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The paper was withdrawn by the author.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

This paper has been withdrawn by the authors. We have discovered an error in the evaluation of the diagram, which invalidates our conclusion.

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This paper has been withdrawn. A significantly revised version will be posted in the near future.