Some Properties of Composition Operators on the Dirichlet Space
نویسندگان
چکیده
In this paper we investigate composition operators induced on the Dirichlet space by linear fractional maps. We characterize the essential normality in this setting, obtain conditions for the linear fractional symbols φ and ψ of the unit disc for which CφC∗ ψ or C ∗ ψCφ is compact, and investigate the shape of the numerical range for linear fractional composition operators induced on the Dirichlet space.
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تاریخ انتشار 2005