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Hypercyclicity of Weighted shifts on weighted Bergman and Dirichlet spaces (2503.16354v3)
Published 20 Mar 2025 in math.FA and math.CV
Abstract: Let $B_w$ and $F_w$ denote, respectively, the weighted backward and forward shift operators defined on the weighted Bergman space $Ap_{\phi}$, or the weighted Dirichlet space ${D}p_{\phi}$ of the unit disc, where the weight function $\phi(z)$ is mostly radial. We first obtain sufficient conditions for $B_w$ and $F_w$ to be continuous on these spaces. For radial weights, we derive norm estimates for coefficient functionals on $Ap_{\phi}$ and $Dp_{\phi}$, and using those estimates we infer when the weighted shifts or their adjoints are hypercyclic. We also deal with a non-radial case.