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A remark on commuting operator exponentials |
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| Authors: | Edgar M E Wermuth |
| Institution: | Zentralinstitut für Angewandte Mathematik, Forschungszentrum Jülich GmbH, Postfach 1913, D-52425 Jülich, Germany |
| Abstract: | In a previous paper the author proved that for square matrices with algebraic entries exp exp exp exp if and only if  . This result is extended here to bounded operators on an arbitrary Banach space. |
| Keywords: | Commuting exponentials Dunford's integral Runge's theorem |
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