
doi: 10.1007/bf01272115
Let \(\phi\) be an analytic function mapping the unit disk D into itself. The composition operator \(C_{\phi}\) on \(H_ 2\) is defined by \(C_{\phi}f=f\circ \phi\). In this paper the author studies such composition operators when \(\phi\) is a linear fractional transformation. For example, the author considers the computation of the adjoint and the operator norm for certain such composition operators.
linear fractional transformation, operator norm, computation of the adjoint, Banach algebras of differentiable or analytic functions, \(H^p\)-spaces, composition operators, Linear operators on function spaces (general)
linear fractional transformation, operator norm, computation of the adjoint, Banach algebras of differentiable or analytic functions, \(H^p\)-spaces, composition operators, Linear operators on function spaces (general)
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