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This paper has been withdrawn by the authors.
This paper has been withdrawn. It will be split into two separate papers. New results will be added in both papers.
This paper was withdrawn by the authors.
This paper was withdrawn by the authors due to the belated discovery of a published paper showing similar results.
This paper has been withdrawn by the author. This draft is withdrawn for its poor quality in english, unfortunately produced by the author when he was just starting his science route. Look at the ICML version instead:…
This paper has been withdrawn by the author(s), due the following reasons. A similar system for a different purpose has already been studied in Phys.Rev.D60:083001,1999 (astro-ph/9904315). Moreover, our analysis was wrong because we have…
This paper has been withdrawn since the material in these notes has been updated, and extended, in hep-th/0409031 and hep-th/0409033, and in work to follow.
This paper has been withdrawn.
This paper has been withdrawn.
This paper has been withdrawn by the author(s) due to the discussion was made on the basis of linear term merely, which is incomplete.
This paper has been withdrawn since we combine this paper with math.AC/0503685. All contents of the paper have been moved to math.AC/0503685.
This paper has been withdrawn by the author because it is superseded by a new preprint: Tran Doan Huan & Nguyen Phuc Hai: arXiv:1010.5162.
This paper has been withdrawn due to the adherance to the double submission policies of a refereed journal. Our apologies.
There have been comments on the starting paper, hep-th/0106074, which point out unclear motivation and definitions on noncommutative momentum introduced. Therefore, to give more clear presentation, this paper is withdrawn.
This paper has been withdrawn
This paper has been withdrawn to allow publication elsewhere.
This paper has been withdrawn by the author,due a immature idea.
Major changes in Sec. II (with much stronger estimates), minor changes in remaining sections, a new title. Deleted Appendix, added 2 new references.
This article was withdrawn by the arXiv.org administrators since it plagiarizes math.GT/0011056.
This paper has been removed by arXiv administrators because of overlap with gr-qc/0408043 and 0706.3245. This paper has excessive overlap with the following papers also written by the authors or their collaborators: gr-qc/0607110,…