Abstract
We study the functional calculus for operators of strong strip type, including both a characterisation by means of weak bounded variation of the resolvent and some perturbation theory. The results are broadly similar in style to those for sectorial operators, but they are not corollaries and there are some surprising differences.
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Batty, C., Mubeen, J. & Vörös, I. Bounded H ∞-Calculus for Strip-Type Operators . Integr. Equ. Oper. Theory 72, 159–178 (2012). https://doi.org/10.1007/s00020-011-1922-z
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DOI: https://doi.org/10.1007/s00020-011-1922-z