Related papers: Generalized Kaluza-Klein Black Holes with Squashed…

This paper has been withdrawn by the author. The paper has been accepted for publication in Communications on Pure and Applied Mathematics.

This paper has been withdrawn by the author due to essential mistakes in some previous versions.

This paper has been withdrawn by the author(s), due the final version in math.QA/0604564

This paper has been withdrawn. A significantly revised version will be posted in the near future.

This paper has been withdrawn for revision, due to misinterpretations of the results.

This paper has been withdrawn by the authors due to some technical problems in the paper.

This paper was withdrawn by the author.

This paper has been withdrawn by the authors due to some errors.

This paper has been withdrawn by the author.

The paper has been withdrawn by the author.

This paper has been withdrawn because the new one gr-qc/0512095 includes all its results (as well as those in gr-qc/0511016) in a clearer way.

This paper was withdrawn by the authors.

This paper has been withdrawn.

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors. We have discovered an error in the evaluation of the diagram, which invalidates our conclusion.

This paper has been withdrawn because of serious errors.

This paper has been withdrawn by the author.

This paper has been withdrawn because the models on which it was based have undergone significant changes and improvements. A new paper with the same title, based on the improved models, is accepted for publication in MNRAS and is available…

This paper has been withdrawn by the authors.

This paper has been withdrawn by the author due to a crucial error.