Electron. J. Diff. Equ., Vol. 2012 (2012), No. 175, pp. 1-9.

Spectral mapping theorem for an evolution semigroup on a space of vector-valued almost-periodic functions

Olivia Saierli

Abstract:
We give some characterizations for exponential stability of a periodic evolution family of bounded linear operators acting on a Banach space in terms of evolution semigroups acting on a special space of almost periodic functions. As a consequence, a spectral mapping theorem is stated.

Submitted May 11, 2012. Published October 12, 2012.
Math Subject Classifications: 47A05, 47A30, 47D06, 47A10, 35B15, 35B10.
Key Words: Periodic evolution families; uniform exponential stability; boundedness; evolution semigroup; almost periodic functions.

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Olivia Saierli
West University of Timisoara, Department of Mathematics
Bd. V. Parvan No. 4, 300223 - Timisoara, Romania.
Tibiscus University of Timisoara, Department of Computer Sciences
Str. Lascar Catargiu, No. 4-6, 300559 - Timisoara, Romania
email: saierli_olivia@yahoo.com

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