A new characterization of boundedness and compactness for differences of differentiation composition operators between Bloch spaces

Abstract:

Let φ and ψ be analytic self-maps of the open unit disk D in the complex plane. In this paper, we give some new characterizations of the boundedness and compactness for the differences of differentiation composition operators C_φ D^n-C_ψ D^n on the Bloch space B.