Title: Cyclicity in weighted $\ell^p$ spaces,
Abstract: We study the cyclicity in weighted $\ell^p(\mathbb{Z})$ spaces. For $p \geq
1$ and $\beta \geq 0$, let $\ell^p\_\beta(\mathbb{Z})$ be the space of
sequences $u=(u\_n)\_{n\in \mathbb{Z}}$ such that $(u\_n |n|^{\beta})\in
\ell^p(\mathbb{Z}) $. We obtain both necessary conditions and sufficient
conditions for $u$ to be cyclic in $\ell^p\_\beta(\mathbb{Z})$, in other words,
for $ \{(u\_{n+k})\_{n \in \mathbb{Z}},~ k \in \mathbb{Z} \}$ to span a dense
subspace of $\ell^p\_\beta(\mathbb{Z})$. The conditions are given in terms of
the Hausdorff dimension and the capacity of the zero set of the Fourier
transform of $u$.