Composition-differentiation operators acting on certain Hilbert spaces of analytic functions

Abstract

We study composition-differentiation operators acting on the Bergman and Dirichlet space of the open unit disk. We first characterize the compactness of composition-differentiation operator on weighted Bergman spaces. We shall then prove that for an analytic self-map $\varphi$ on the open unit disk $\mathbb{D}$, the induced composition-differentiation operator is bounded with dense range if and only if $\varphi$ is univalent and the polynomials are dense in the Bergman space on $\Omega:=\varphi(\mathbb{D})$.

Keywords

• composition-differentiation operator
• Bergman space
• Dirichlet space
• compact operator
• dense-range operator

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