Asymptotic Stability of the Pexider–Cauchy Functional Equation in Non-Archimedean Spaces

In this paper, we investigated the asymptotic stability behaviour of the Pexider–Cauchy functional equation in non-Archimedean spaces. We also showed that, under some conditions, if <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><...

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Main Authors: Hamid Gharib, Mohammad B. Moghimi, Abbas Najati, Jae-Hyeong Bae
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/18/2197
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author Hamid Gharib
Mohammad B. Moghimi
Abbas Najati
Jae-Hyeong Bae
author_facet Hamid Gharib
Mohammad B. Moghimi
Abbas Najati
Jae-Hyeong Bae
author_sort Hamid Gharib
collection DOAJ
description In this paper, we investigated the asymptotic stability behaviour of the Pexider–Cauchy functional equation in non-Archimedean spaces. We also showed that, under some conditions, if <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>∥</mo><mi>f</mi><mo>(</mo><mi>x</mi><mo>+</mo><mi>y</mi><mo>)</mo><mo>−</mo><mi>g</mi><mo>(</mo><mi>x</mi><mo>)</mo><mo>−</mo><mi>h</mi><mo>(</mo><mi>y</mi><mo>)</mo><mo>∥</mo><mo>⩽</mo><mi>ε</mi></mrow></semantics></math></inline-formula>, then <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>f</mi><mo>,</mo><mi>g</mi></mrow></semantics></math></inline-formula> and <i>h</i> can be approximated by additive mapping in non-Archimedean normed spaces. Finally, we deal with a functional inequality and its asymptotic behaviour.
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spelling doaj.art-f95a972f449544e88d9b305df6d6be842023-11-22T14:04:44ZengMDPI AGMathematics2227-73902021-09-01918219710.3390/math9182197Asymptotic Stability of the Pexider–Cauchy Functional Equation in Non-Archimedean SpacesHamid Gharib0Mohammad B. Moghimi1Abbas Najati2Jae-Hyeong Bae3Department of Mathematics, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil 56199-11367, IranDepartment of Mathematics, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil 56199-11367, IranDepartment of Mathematics, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil 56199-11367, IranHumanitas College, Kyung Hee University, Yongin 17104, KoreaIn this paper, we investigated the asymptotic stability behaviour of the Pexider–Cauchy functional equation in non-Archimedean spaces. We also showed that, under some conditions, if <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>∥</mo><mi>f</mi><mo>(</mo><mi>x</mi><mo>+</mo><mi>y</mi><mo>)</mo><mo>−</mo><mi>g</mi><mo>(</mo><mi>x</mi><mo>)</mo><mo>−</mo><mi>h</mi><mo>(</mo><mi>y</mi><mo>)</mo><mo>∥</mo><mo>⩽</mo><mi>ε</mi></mrow></semantics></math></inline-formula>, then <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>f</mi><mo>,</mo><mi>g</mi></mrow></semantics></math></inline-formula> and <i>h</i> can be approximated by additive mapping in non-Archimedean normed spaces. Finally, we deal with a functional inequality and its asymptotic behaviour.https://www.mdpi.com/2227-7390/9/18/2197non-Archimedean spacePexider–Cauchy equationasymptotic stability
spellingShingle Hamid Gharib
Mohammad B. Moghimi
Abbas Najati
Jae-Hyeong Bae
Asymptotic Stability of the Pexider–Cauchy Functional Equation in Non-Archimedean Spaces
Mathematics
non-Archimedean space
Pexider–Cauchy equation
asymptotic stability
title Asymptotic Stability of the Pexider–Cauchy Functional Equation in Non-Archimedean Spaces
title_full Asymptotic Stability of the Pexider–Cauchy Functional Equation in Non-Archimedean Spaces
title_fullStr Asymptotic Stability of the Pexider–Cauchy Functional Equation in Non-Archimedean Spaces
title_full_unstemmed Asymptotic Stability of the Pexider–Cauchy Functional Equation in Non-Archimedean Spaces
title_short Asymptotic Stability of the Pexider–Cauchy Functional Equation in Non-Archimedean Spaces
title_sort asymptotic stability of the pexider cauchy functional equation in non archimedean spaces
topic non-Archimedean space
Pexider–Cauchy equation
asymptotic stability
url https://www.mdpi.com/2227-7390/9/18/2197
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AT abbasnajati asymptoticstabilityofthepexidercauchyfunctionalequationinnonarchimedeanspaces
AT jaehyeongbae asymptoticstabilityofthepexidercauchyfunctionalequationinnonarchimedeanspaces