The isometries of $H^{\infty }(K)$
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- by Michael Cambern PDF
- Proc. Amer. Math. Soc. 36 (1972), 173-178 Request permission
Abstract:
Let K be a finite-dimensional Hilbert space. In this article a characterization is given of the linear isometries of the Banach space ${H^\infty }(K)$ onto itself. It is shown that T is such an isometry iff T is of the form $(TF)(z) = \mathcal {T}F(t(z))$, for $F \in {H^\infty }(K)$ and z belonging to the unit disc, where t is a conformal map of the disc onto itself and $\mathcal {T}$ is an isometry of K onto K.References
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Additional Information
- © Copyright 1972 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 36 (1972), 173-178
- MSC: Primary 46J15; Secondary 46E40
- DOI: https://doi.org/10.1090/S0002-9939-1972-0306921-5
- MathSciNet review: 0306921