Related papers: NP=PSPACE

This paper has been withdrawn by the author(s), due to a crucial error in eq. 6.

This paper has been withdrawn.

This paper has been withdrawn by the author due to essential mistakes in some previous versions.

This paper has been withdrawn by the author due to similarity to the author's other paper

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn by the authors due to inadequate arguments.

This paper was withdrawn by arXiv admin due to authors' misrepresentation of identity/affiliation.

This paper has been withdrawn by the author

This paper has been withdrawn by the author due to a crucial problem in Lemma 3. This equation must be changed.

The paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author because in the main text some discussion parts were inadvertently added by mistake.

This paper has been withdrawn

This paper has been withdrawn by the authors due to new experimental results.

This paper has been withdrawn by the authors due to an unlikely results.

This paper is incorrect, and has been withdrawn by the author.

This paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the author, due a crucial error in the optimization. For the last one month I have been trying to remove the error, but it seems to take a lot of time so I decided to withdraw this paper for the moment.

This paper has been withdrawn by the author due to a crucial error in eq.59. I apologize for the inconveniences.

This paper has been withdrawn by the author due to a crucial sign error in some equations