Shift invariant subspaces of composition operators.
Jones, Matthew (2005) Shift invariant subspaces of composition operators. Archiv der Mathematik, 84 (3). pp. 258-267. ISSN 1420-8938
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Let C denote the composition operator defined on the standard Hardy spaces Hp as where is an analytic self-map of the unit disk in the complex plane. In this paper we discuss those invariant subspaces of C in Hp which are invariant under the shift operator, We restrict our attention to the case where is an inner function. Our main result characterises these invariant subspaces. We also consider C when restricted to such an invariant subspace and we describe the structure of the operator and find a formula for the essential spectral radius.
|Research Areas:||A. > Business School > Economics
A. > School of Science and Technology > Design Engineering and Mathematics
|Depositing User:||Repository team|
|Date Deposited:||02 Dec 2008 17:31|
|Last Modified:||13 Oct 2016 14:12|
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