Related papers: Global Minimization of Rational Functions and the …

The paper has been withdrawn by the author.

This paper has been withdrawn by the authors.

The paper has been withdrawn by the author.

This paper has been withdrawn by the author, due to a crucial error in page 5.

The paper is withdrawn by the authors and replaced be an improved and extended version arxiv: 0812.2968

This paper has been withdrawn by the author due to inconsistency of the considered working hypothesis. The consistent treatment is presented in the last publications of the author.

The paper has been withdrawn by the authors

This paper has been withdrawn by the corresponding author because the newest version is now published in Journal of Discrete Algorithms.

This paper has been withdrawn by the authors because the authors excluded the paper from electronic proceedings of the conference.

This paper has been withdrawn by the authors

This paper has been withdrawn by the author.

This paper was withdrawn by the authors.

This paper has been withdrawn by the author, due to necessity of revision.

This paper has been withdrawn by the authors, due to a crucial error in beta functions.

This paper has been withdrawn.

This paper has been withdrawn by the author, due to a crucial error in the proof of Lemma 3.1.

This paper has been withdrawn by the authors.

This paper has been withdrawn by the authors

This paper has been withdrawn by the author.

This paper has been withdrawn by the author due to new results to be added.