Almost periodic and quasi-periodic functions. A brief survey and some applications

In the present work, we study almost-periodic and quasi-periodic functions, their main properties and some related results. We also present almost periodic functions with parameters, which we adapt to the quasi-periodic framework. We then show that these spaces are isomorphic to other spaces of almo...

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Main Author: Dhaou Lassoued
Format: Article
Language:English
Published: University Constantin Brancusi of Targu-Jiu 2024-02-01
Series:Surveys in Mathematics and its Applications
Subjects:
Online Access:https://www.utgjiu.ro/math/sma/v19/p19_05.pdf
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author Dhaou Lassoued
author_facet Dhaou Lassoued
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description In the present work, we study almost-periodic and quasi-periodic functions, their main properties and some related results. We also present almost periodic functions with parameters, which we adapt to the quasi-periodic framework. We then show that these spaces are isomorphic to other spaces of almost periodic functions (or quasi-periodic functions) with values in Banach spaces. We shall study in particular the superposition operators between these spaces. We introduce then a Sobolev-like space of almost periodic functions and analyze its main properties. We illustrate by some applications especially on convolution operation and almost periodic solutions of linear differential equations
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spelling doaj.art-083c6cefb7ed49c3b68dfcfd532b09b02024-02-22T12:00:20ZengUniversity Constantin Brancusi of Targu-JiuSurveys in Mathematics and its Applications1843-72651842-62982024-02-0119 (2024)79107Almost periodic and quasi-periodic functions. A brief survey and some applicationsDhaou Lassoued 0University of Gabès, Faculty of Sciences of Gabè Department of Mathematics, Mathematics and Applications Laboratory LR17ES11 Tunisia.In the present work, we study almost-periodic and quasi-periodic functions, their main properties and some related results. We also present almost periodic functions with parameters, which we adapt to the quasi-periodic framework. We then show that these spaces are isomorphic to other spaces of almost periodic functions (or quasi-periodic functions) with values in Banach spaces. We shall study in particular the superposition operators between these spaces. We introduce then a Sobolev-like space of almost periodic functions and analyze its main properties. We illustrate by some applications especially on convolution operation and almost periodic solutions of linear differential equations https://www.utgjiu.ro/math/sma/v19/p19_05.pdfalmost periodic functionssobolev-like spacenemytskii operators
spellingShingle Dhaou Lassoued
Almost periodic and quasi-periodic functions. A brief survey and some applications
Surveys in Mathematics and its Applications
almost periodic functions
sobolev-like space
nemytskii operators
title Almost periodic and quasi-periodic functions. A brief survey and some applications
title_full Almost periodic and quasi-periodic functions. A brief survey and some applications
title_fullStr Almost periodic and quasi-periodic functions. A brief survey and some applications
title_full_unstemmed Almost periodic and quasi-periodic functions. A brief survey and some applications
title_short Almost periodic and quasi-periodic functions. A brief survey and some applications
title_sort almost periodic and quasi periodic functions a brief survey and some applications
topic almost periodic functions
sobolev-like space
nemytskii operators
url https://www.utgjiu.ro/math/sma/v19/p19_05.pdf
work_keys_str_mv AT dhaoulassoued almostperiodicandquasiperiodicfunctionsabriefsurveyandsomeapplications