Related papers: Lower order eigenvalues of the biharmonic operator

This paper has been withdrawn by the author.

This paper has been withdrawn by the author(s)

This paper has been withdrawn because the result turns out to be trivial.

This paper has been withdrawn by the author due to a crucial sign error in equation 1.

This paper has been withdrawn by the authors; the main conclusion is incorrect, as some of the crucial calculations were not properly converged.

This paper has been withdrawn.

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn by the authors

This paper has been withdrawn

This paper has been withdrawn pending revision.

This paper has been withdrawn

Although the results are correct, it was pointed out that the results follow from some previously known results. Accordingly, this version of the paper is withdrawn by the authors.

This paper has been withdrawn by the author, due an error in claim 1.

The paper has been withdrawn by the author.

This paper has been withdrawn due to its publication

The paper has been withdrawn by the authors

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author.

The paper was withdrawn by the author.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