On Uniform Exponential Stability and Exact Admissibility of Discrete Semigroups

We prove that a discrete semigroup 𝕋={T(n):n∈ℤ+} of bounded linear operators acting on a complex Banach space X is uniformly exponentially stable if and only if, for each x∈AP0(ℤ+,X), the sequence n↦∑k=0n‍T(n-k)x(k):ℤ+→X belongs to AP0(ℤ+,X). Similar results for periodic discrete evolution families...

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Main Authors: Aftab Khan, Gul Rahmat, Akbar Zada
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:International Journal of Differential Equations
Online Access:http://dx.doi.org/10.1155/2013/268309
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author Aftab Khan
Gul Rahmat
Akbar Zada
author_facet Aftab Khan
Gul Rahmat
Akbar Zada
author_sort Aftab Khan
collection DOAJ
description We prove that a discrete semigroup 𝕋={T(n):n∈ℤ+} of bounded linear operators acting on a complex Banach space X is uniformly exponentially stable if and only if, for each x∈AP0(ℤ+,X), the sequence n↦∑k=0n‍T(n-k)x(k):ℤ+→X belongs to AP0(ℤ+,X). Similar results for periodic discrete evolution families are also stated.
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language English
publishDate 2013-01-01
publisher Wiley
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series International Journal of Differential Equations
spelling doaj-art-5ad0a0d2eaea41ab9cb603b692f789ef2025-08-20T02:05:27ZengWileyInternational Journal of Differential Equations1687-96431687-96512013-01-01201310.1155/2013/268309268309On Uniform Exponential Stability and Exact Admissibility of Discrete SemigroupsAftab Khan0Gul Rahmat1Akbar Zada2Shaheed Benazir Bhutto University Sheringal, Dir Upper 18000, PakistanGovernment College University, Abdus Salam School of Mathematical Sciences (ASSMS), Lahore 54600, PakistanDepartment of Mathematics, University of Peshawar, Peshawar 25000, PakistanWe prove that a discrete semigroup 𝕋={T(n):n∈ℤ+} of bounded linear operators acting on a complex Banach space X is uniformly exponentially stable if and only if, for each x∈AP0(ℤ+,X), the sequence n↦∑k=0n‍T(n-k)x(k):ℤ+→X belongs to AP0(ℤ+,X). Similar results for periodic discrete evolution families are also stated.http://dx.doi.org/10.1155/2013/268309
spellingShingle Aftab Khan
Gul Rahmat
Akbar Zada
On Uniform Exponential Stability and Exact Admissibility of Discrete Semigroups
International Journal of Differential Equations
title On Uniform Exponential Stability and Exact Admissibility of Discrete Semigroups
title_full On Uniform Exponential Stability and Exact Admissibility of Discrete Semigroups
title_fullStr On Uniform Exponential Stability and Exact Admissibility of Discrete Semigroups
title_full_unstemmed On Uniform Exponential Stability and Exact Admissibility of Discrete Semigroups
title_short On Uniform Exponential Stability and Exact Admissibility of Discrete Semigroups
title_sort on uniform exponential stability and exact admissibility of discrete semigroups
url http://dx.doi.org/10.1155/2013/268309
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AT gulrahmat onuniformexponentialstabilityandexactadmissibilityofdiscretesemigroups
AT akbarzada onuniformexponentialstabilityandexactadmissibilityofdiscretesemigroups