Abstract
Recently, Ben-Artzi and Gohberg [2] used the concept ofC 0-semigroups in order to characterize the existence of dichotomies for nonautonomous differential equations on ℂn. A similar task was performed by Latushkin and Stepin [11] for dichotomies of linear skew-product flows. In this paper we will useC o-semigroups to characterize existence of dichotomies for strongly continuous evolution families (U(t,s)) t.s∃ℝ on Hilbert and Banach spaces. Under an exponential growth condition we show that the concepts of hyperbolic evolution groups and exponentially dichotomic evolution families are equivalent.
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Rau, R.T. Hyperbolic evolution groups and dichotomic evolution families. J Dyn Diff Equat 6, 335–350 (1994). https://doi.org/10.1007/BF02218534
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DOI: https://doi.org/10.1007/BF02218534