Related papers: Gieseker-Petri special curves

This paper has been withdrawn by the authors due to new experimental results.

This paper has been withdrawn

The paper is withdrawn by the authors and replaced be an improved and extended version arxiv: 0812.2968

This paper has been withdrawn Abstract: This paper has been withdrawn by the author due to the publication.

This paper has been withdrawn.

This paper has been withdrawn by the authors. It has been replaced by the papers: "Drawings of Planar Graphs with Few Slopes and Segments" (math/0606450) and "Graph Drawings with Few Slopes" (math/0606446).

This paper has been withdrawn by the author due to an error in the proof.

This paper has been withdrawn by the author, due to a significant error in section 4.3.1.

This paper has been withdrawn by the authors

This paper has been withdrawn by the authors due to some fatal errors in the analysis.

This paper has been withdrawn

This paper has been withdrawn by the author due to an error in the derivation.

This paper has been withdrawn by the author, due to errors in the figures.

This paper has been withdrawn due to an error, and no further revisions will be made.

This paper has been withdrawn by the authors due to a mistake in the proof of Theorem 1.

This paper is withdrawn because the results in the paper are included in a paper to be published in Mathematical and Computer Modelling.

The paper has been withdrawn by the author.

This paper has been withdrawn by the author, due to errors in the figures.

Although the results are correct, it was pointed out that the results follow from some previously known results. Accordingly, this version of the paper is withdrawn by the authors.

This paper has been withdrawn, because its material has been revised and became part of paper math.GT/0010184