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## A maximal theorem for holomorphic semigroups on vector-valued spaces.

### Abstract

Suppose that 1<p\leq \infty (\Omega ,\mu) is a \sigma finite measure space and E is a closed subspace of Labesgue Bochner space L^p(\Omega; E) consisting of function oon \Omega that take their values in some complex Banach space X. Suppose that -A is invertible and generates a bounded hlomorphic semigroup T_z on E. If 0<\alpha <1, and f belongs to the domain of A^\alpha, then the maximal function \sup_z|T_zf|, where the supremum is taken over any sector contained in the sector of holomorphy, belongs to L^p. This extends an earlier result of Blower and Doust

Publisher: Australian National University
Year: 2010
OAI identifier: oai:eprints.lancs.ac.uk:28029
Provided by: Lancaster E-Prints

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