Related papers: Highly optimized fourth-order short-time approxima…

This paper is withdrawn due to some errors, which are corrected in arXiv:0912.0071v4 [cs.LG].

This paper is withdrawn because the results in the paper are included in a paper to be published in Mathematical and Computer Modelling.

This paper has been withdrawn, and will be superseded by another submission.

This paper has been withdrawn because of serious errors.

This paper has been withdrawn due to its publication

This paper has been withdrawn by the corresponding author because the newest version is now published in Discrete Applied Mathematics.

This paper has been withdrawn by the author.

Some mistakes have been corrected

This paper has been withdrawn by the author. This draft is withdrawn for its poor quality in english, unfortunately produced by the author when he was just starting his science route.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This paper has been withdrawn by the authors, due the copyright policy of the journal it has been submited to.

This paper has been withdrawn by the corresponding author because the newest version is now published in Journal of Discrete Algorithms.

This paper has been withdrawn. A much-improved version can be found at hep-ph/0209176.

This paper has been withdrawn as it has been superseded by postings arXiv:quant-ph/0702147 and arXiv:0712.2935

This paper is currently withdrawn and is being revised by the authors.

This paper has been withdrawn by the authors pending corrections.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author, since now all four parts of the review are available as a single file 0804.1639. I also made some revision of the text in order to avoid misprints and some inaccurate expressions.

This paper has been withdrawn by the author due to a coming paper completely superseding it.

This paper has been withdrawn by the author due to a error in attachment of source file.

This paper has been withdrawn by the author.