Related papers: Modularity of equations D3 and the Iskovskikh clas…

This paper has been withdrawn by the author, due to a recent article by Kriete and Moorhouse (Linear relations in the Calkin algebra for composition operators, Trans. AMS, 359 (2007), 2915-2944) which includes more general results.

This paper has been withdrawn by the author, due to errors in the figures.

This paper has been withdrawn.

This paper has been withdrawn by the author, since the author does not have enough time to answer every questions on this result.

This paper has been withdrawn.

Withdrawn. Replaced by quant-ph/0308160 (cf accompanying txt file)

This paper has been withdrawn by the author.

The paper has been withdrawn.

This paper has been withdrawn by the authors. Because of a misunderstanding, the paper was submitted prematurely to the arXiv. A replacement will follow.

This paper has been withdrawn by the author due to the need for further revision.

This paper has been withdrawn at the author's request.

unpublished; this paper has been withdrawn.

This paper was withdrawn by the author. It turns out that similar ideas have been presented before. The author apologizes.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author, since it is now a part of "Classical aspects of lightlike dimensional reduction" Class.Quant.Grav.23:7085-7110, 2006, gr-qc/0610011

The paper has been withdrawn.

This paper has been withdrawn by the author due to a mistake in the proof of the main theorem.

This paper has been withdrawn because the new one gr-qc/0512095 includes all its results (as well as those in gr-qc/0511016) in a clearer way.

This paper has been withdrawn by the authour.

This paper has been withdrawn