A pseudo almost periodic (PAP) function f(t) in a Banach space is a function that can be expressed as the sum of an almost periodic function g(t) and a continuous function e(t) which vanishes as t approaches infinity, and moreover is bounded and has a zero asymptotic mean value. The main theorem on PAP solutions of a pseudo almost periodic nonlinear perturbation of a linear autonomous ordinary differential equation is proven. The extension of the theorem to nonlinear equations is also discussed.
机构:Ecole Supérieure des Sciences et de Technologie de Hammam-Sousse,ISSAT Sousse and Laboratory of Mathematical Physics; Specials Functions and Applications, LR11ES35
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Univ Cadi Ayyad, Fac Sci Semlalia, Dept Math, BP 2390, Marrakech, MoroccoUniv Cadi Ayyad, Fac Sci Semlalia, Dept Math, BP 2390, Marrakech, Morocco
Ezzinbi, Khalil
Toure, Hamidou
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Univ Ouaga 1, Dept Math, Unite Rech & Format Sci Exactes & Appl, Pr Joseph KI ZERBO, BP 7021, Ouagadougou 03, Burkina FasoUniv Cadi Ayyad, Fac Sci Semlalia, Dept Math, BP 2390, Marrakech, Morocco
Toure, Hamidou
Zabsonre, Issa
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Univ Ouaga 1, Dept Math, Unite Rech & Format Sci Exactes & Appl, Pr Joseph KI ZERBO, BP 7021, Ouagadougou 03, Burkina FasoUniv Cadi Ayyad, Fac Sci Semlalia, Dept Math, BP 2390, Marrakech, Morocco