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2018•Annals of West University of Timisoara - Mathematics and Computer ScienceOpen access

On uniform exponential trisplitting for cocycles of linear operators in Banach spaces

Larisa Elena Biriş, Claudia Luminiţa Mihiţ, Traian Ceauşu, Ioan‐Lucian Popa

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Abstract

Abstract The aim of this paper is to study the concept of uniform exponential trisplitting for skew-product semiflow in Banach spaces. This concept is a generalisation of the well-known concept of uniform exponential trichotomy. We obtain necessary and sufficient conditions for this concept of Datko’s type. a character-isation in terms of Lyapunov functions is provided. The results are obtained from the point of view of the projector families, i.e. invariant and strongly invariant.

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Abstract The aim of this paper is to study the concept of uniform exponential trisplitting for skew-product semiflow in Banach spaces. This concept is a generalisation of the well-known concept of uniform exponential trichotomy. We obtain necessary and sufficient conditions for this concept of Datko’s type. a character-isation in terms of Lyapunov functions is provided. The results are obtained from the point of view of the projector families, i.e. invariant and strongly invariant.

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Available abstract

Abstract The aim of this paper is to study the concept of uniform exponential trisplitting for skew-product semiflow in Banach spaces. This concept is a generalisation of the well-known concept of uniform exponential trichotomy. We obtain necessary and sufficient conditions for this concept of Datko’s type. a character-isation in terms of Lyapunov functions is provided. The results are obtained from the point of view of the projector families, i.e. invariant and strongly invariant.

Key concepts: Mathematics, Trichotomy (philosophy), Banach space, Exponential function, Exponential dichotomy, Pure mathematics, Invariant (physics), Mathematical analysis

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