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This paper has been withdrawn
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Major mistake. The paper has been withdrawn.
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This paper has been withdrawn by the authors.
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This paper has been withdrawn, as all conjectures (and one claim) have been proven incorrect. Some of what remains may eventually reappear in a different context.
This paper has been withdrawn by the authors due to numerical problems to get viable results.
This paper has been withdrawn by the author, since one of the key results duplicates existing work, as pointed out by a reader. I am currently revising the manuscript.
This paper was withdrawn. It has been superseded by the latest version of hep-th/0107069.
This paper has been withdrawn by the author, due to a significant error in section 4.3.1.
This paper has been withdrawn by the author.
This paper has been withdrawn.