Type: Article
Publication Date: 2019-01-18
Citations: 6
DOI: https://doi.org/10.1017/prm.2018.82
Abstract We solve a problem posed by Blasco, Bonilla and Grosse-Erdmann in 2010 by constructing a harmonic function on ℝ N , that is frequently hypercyclic with respect to the partial differentiation operator ∂/∂ x k and which has a minimal growth rate in terms of the average L 2 -norm on spheres of radius r > 0 as r → ∞.