Abstract
Let A be the generator of a strongly continuous nonquasianatytic oneparameter group of operators U(t) (A, in general, is unbounded). In this case one proves a spectral mapping theorem in the following form:
. The proof is based on the theory of operators with separable spectrum.
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Additional information
Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova Akademii Nauk SSSR, Vol. 178, pp. 146–150, 1989.
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Fong, V.Q., Lyubich, Y.I. On the spectral mapping theorem for one-parameter groups of operators. J Math Sci 61, 2035–2037 (1992). https://doi.org/10.1007/BF01095666
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DOI: https://doi.org/10.1007/BF01095666