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The essential norms
and spectra of composition operators on H∞
Lixin Zheng |
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Vol. 203 (2002), No. 2, 503–510
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Abstract |
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This paper gives a complete characterization of the spectra of composition operators acting on H∞ in the case that the symbol φ has an interior fixed point. This is done after it proves that the essential norm of a composition operator acting on H∞ is either 1 or 0. |
Milestones
Received: 1 March 2000
Revised: 2 October 2000
Published: 1 April 2002
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Authors |
| Lixin Zheng | |
| 1111 Balclutha Dr, # J204 Foster City, CA 94404 |
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