Related papers: On Hadamard matrices at roots of unity

This paper has been withdrawn by the author. There is an error on page 3 in the last inequality before Lemma 1.1.

This paper has been withdrawn by the author, due to a crucial error in page 5.

The paper has been withdrawn due to an error in the main theorem.

This paper has been withdrawn by the authors due to a crucial error.

This paper has been withdrawn by the author

This paper has been withdrawn. Its new version has been published.

This paper has been withdrawn by the author. Much simpler proof of the main result was obtained which led to major changes in the presentation.

This paper has been withdrawn since it contains some discrepancy with othe authers's recent result. We will not post this until this discrepancy is resolved.

The paper has been withdrawn.

We discuss an extension of the almost Hadamard matrix formalism, to the case of complex matrices. Quite surprisingly, the situation here is very different from the one in the real case, and our conjectural conclusion is that there should be…

The author has removed this paper, following the publication of a more complete version.

Paper withdrawn. There is a gap in the proof of Proposition 4.3 (its conclusion ``d'o\`{u} la proposition.'' is incorrect). Therefore theorems 1.1 and 3.1, which were the main results of the paper, are not proved.

This paper has been withdrawn by the author.

This paper has been withdrawn.

This paper has been withdrawn by the author; a revised version is part of the author's phd-thesis "Quasi-logarithmic structures" (Zurich, 2007).

This paper has been withdrawn since we combine this paper with math.AC/0503685. All contents of the paper have been moved to math.AC/0503685.

%auto-ignore This paper has been withdrawn by the authors.

This paper has been withdrawn by the authors.

Previous analyses of Laguerre's method have provided results on the convergence and properties of this popular method when applied to the polynomials $p_n(z)=z^n-1$, $n\in\mathbb{N}$. While these analyses appear to provide a fairly complete…

This paper has been withdrawn due to a missing hypothesis in the main statement.