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检索条件"作者=Iz-iddine el-FASSI"
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ON SelECTIONS OF SET-VALUED EULER-LAGRANGE INCLUSIONS WITH APPLICATIONS
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Acta Mathematica Scientia 2020年 第4期40卷 1105-1115页
作者: Hamid KHODAEI iz-iddine el-fassi Bahman HAYAT Faculty of Mathematical Sciences and Statistics Malayer UniversityP.O.Bor 65719-95863MalayerIran Department of Mathematics Faculty of Sciences and TechniquesSidi Mohamed ben Abdellah UniversityB.P.2202FezMoroccc.
We discuss the set-valued dynamics related to the theory of functional *** look for selections of convex set-valued functions satisfying set-valued Euler-Lagrange *** improve and extend upon some of the results in[13,... 详细信息
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APPROXIMATE SOLUTION OF A p-th ROOT FUNCTIONAL EQUATION IN NON-ARCHIMEDEAN (2,β)-BANACH SPACES
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Acta Mathematica Scientia 2019年 第2期39卷 369-381页
作者: iz-iddine el-fassi Hamid KHODAEI Themistocles M.RASSIAS Department of Mathematics Faculty of SciencesIbn Tofail University Department of Mathematics Malayer University Department of Mathematics National Technical University of Athens Zografou Campus
In this paper, using the Brzdek's fixed point theorem [9,Theorem 1] in non-Archimedean(2,β)-Banach spaces, we prove some stability and hyperstability results for an p-th root functional equation ■where p∈{1, …, 5}... 详细信息
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ON HYPERSTABILITY OF THE BIADDITIVE FUNCTIONAL EQUATION
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Acta Mathematica Scientia 2017年 第6期37卷 1727-1739页
作者: iz-iddine el-fassi Janusz BRZDEK Abdellatif CHAHBI Samir KABBAJ Department of Mathematics Faculty of SciencesIbn Tofail UniversityBP 133KenitraMorocco Department of Mathematics Pedagogical UniversityPodchorazych 230-084 KrakowPoland
We present results on approximate solutions to the biadditive equationf(x+y,z-w)+f(x-y,z+w)=2f(x,z)-2f(y,w)on a restricted domain. The proof is based on a quite recent fixed point theorem in some function s... 详细信息
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