Cyclicity in the harmonic Dirichlet space

Evgueni Abakumov, Omar El-Fallah, Karim Kellay +1

The harmonic Dirichlet space $\mathcal{D}(\mathbb{T})$ is the Hilbert space of functions $f\in L^2(\mathbb{T})$ such that $$\|f\|_{\cal{D} (\mathbb{T})}^2 := \sum_{n\in\mathbb{Z}} (1…