Related papers: Codes over Quaternion Integers with Respect to Lip…

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The paper was withdrawn by the author. It contained various errors.

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This paper has been withdrawn by the author due to an error in the proof of Proposition 4.8.

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This paper has been withdrawn by the author, due to a significant error in section 4.3.1.

This paper has been withdrawn. See quant-ph/9806031 for a discussion.

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This paper has been withdrawn by the authors. It has been superseded by hep-th/0309154

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This paper has been withdrawn by the author due to an error estimate in Lemma 3.1.

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