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This paper has been withdrawn due to an error in section 3.

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This paper has been withdrawn by the author due to the presented idea is wrong.

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This paper has been withdrawn by the author, since it is now a part of "Classical aspects of lightlike dimensional reduction" Class.Quant.Grav.23:7085-7110, 2006, gr-qc/0610011

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This paper has been withdrawn due to disagreement of suggested results and methods between authors.

This paper has been withdrawn by the author, due to the insecurity against attacks received in quant-ph/0605027v5.

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This paper has been withdrawn by the author due to a crucial sign error in equation 1.