Related papers: Derived category and Lie algebras

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This paper has been withdrawn by the author; see the much expanded, improved, and generalized version at arXiv:0811.2080.

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This paper has been withdrawn by the author due to that the main results and approaches are closedly parallel to the ones in Lie algebra case.

This paper has been withdrawn by the author. It will be replaced, substantially modified, by sections of the author's completed PhD thesis.

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