Related papers: On the biharmonic Dirichlet problem: The higher di…

This paper has been withdrawn by the author due to incomplete interpretation for the results.

The paper has been withdrawn by authors. The issues studied in this paper were changed so much that we have published a new paper considering these issues. See hep-th/0406074

This paper has been withdrawn by the author.

The paper has been withdrawn by authors.

This paper was withdrawn by the authors.

This paper has been withdrawn.

The paper has been withdrawn by the authors. The contents of the paper will be used in a future communication which will contain major addition and shift of focus.

This paper has been withdrawn by the author [arXiv admin].

The paper has been withdrawn by the author.

Withdrawn by the author. Further research is needed.

This paper has been withdrawn by the authors. There was an erroneous estimate of the degree of a transformed polynomial, making the method appear more effective than it really is. We thank an anonymous referee for pointing out this error.

This paper was withdrawn by the authors.

This paper has being withdrawn by the authors due to an error in the conclusion.

This paper has been withdrawn.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author.

Withdrawn -- a revised version will appear in due course.

This paper has been withdrawn by the author(s) in the light of several other works available and due to a misunderstanding in the authorships.

The paper was withdrawn by the authors.

This paper has been withdrawn by the author due to its publication