Intuitionistic Fuzzy Stability of an Euler–Lagrange Symmetry Additive Functional Equation via Direct and Fixed Point Technique (FPT)

In this article, a new class of real-valued Euler–Lagrange symmetry additive functional equations is introduced. The solution of the equation is provided, assuming the unknown function to be continuous and without any regularity conditions. The objective of this research is to derive the Hyers–Ulam–...

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Main Authors: P. Agilan, K. Julietraja, Nabil Mlaiki, Aiman Mukheimer
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/14/11/2454
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author P. Agilan
K. Julietraja
Nabil Mlaiki
Aiman Mukheimer
author_facet P. Agilan
K. Julietraja
Nabil Mlaiki
Aiman Mukheimer
author_sort P. Agilan
collection DOAJ
description In this article, a new class of real-valued Euler–Lagrange symmetry additive functional equations is introduced. The solution of the equation is provided, assuming the unknown function to be continuous and without any regularity conditions. The objective of this research is to derive the Hyers–Ulam–Rassias stability (HURS) in intuitionistic fuzzy normed spaces (IFNS) by applying the classical direct method and fixed point techniques (FPT). Furthermore, it is proven that the Euler–Lagrange symmetry additive functional equation and the control function, which is the IFNS of the sums and products of powers of norms, is stable. In addition, a few examples where the solution of this equation can be applied in Fourier series and Fourier transforms are demonstrated.
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spelling doaj.art-058659818fd24b8ca8cc0d51b58ea0c52023-11-24T10:14:19ZengMDPI AGSymmetry2073-89942022-11-011411245410.3390/sym14112454Intuitionistic Fuzzy Stability of an Euler–Lagrange Symmetry Additive Functional Equation via Direct and Fixed Point Technique (FPT)P. Agilan0K. Julietraja1Nabil Mlaiki2Aiman Mukheimer3Department of Mathematics, St. Joseph’s College of Engineering, OMR, Chennai 600119, Tamil Nadu, IndiaDepartment of Mathematics, St. Joseph’s College of Engineering, OMR, Chennai 600119, Tamil Nadu, IndiaDepartment of Mathematics and Sciences, Prince Sultan University, Riyadh 11586, Saudi ArabiaDepartment of Mathematics and Sciences, Prince Sultan University, Riyadh 11586, Saudi ArabiaIn this article, a new class of real-valued Euler–Lagrange symmetry additive functional equations is introduced. The solution of the equation is provided, assuming the unknown function to be continuous and without any regularity conditions. The objective of this research is to derive the Hyers–Ulam–Rassias stability (HURS) in intuitionistic fuzzy normed spaces (IFNS) by applying the classical direct method and fixed point techniques (FPT). Furthermore, it is proven that the Euler–Lagrange symmetry additive functional equation and the control function, which is the IFNS of the sums and products of powers of norms, is stable. In addition, a few examples where the solution of this equation can be applied in Fourier series and Fourier transforms are demonstrated.https://www.mdpi.com/2073-8994/14/11/2454Euler–Lagrange symmetry additive functional equationsgeneralised Hyers–Ulam–Rassiasstability intuitionistic fuzzy normed spacesfixed point technique
spellingShingle P. Agilan
K. Julietraja
Nabil Mlaiki
Aiman Mukheimer
Intuitionistic Fuzzy Stability of an Euler–Lagrange Symmetry Additive Functional Equation via Direct and Fixed Point Technique (FPT)
Symmetry
Euler–Lagrange symmetry additive functional equations
generalised Hyers–Ulam–Rassias
stability intuitionistic fuzzy normed spaces
fixed point technique
title Intuitionistic Fuzzy Stability of an Euler–Lagrange Symmetry Additive Functional Equation via Direct and Fixed Point Technique (FPT)
title_full Intuitionistic Fuzzy Stability of an Euler–Lagrange Symmetry Additive Functional Equation via Direct and Fixed Point Technique (FPT)
title_fullStr Intuitionistic Fuzzy Stability of an Euler–Lagrange Symmetry Additive Functional Equation via Direct and Fixed Point Technique (FPT)
title_full_unstemmed Intuitionistic Fuzzy Stability of an Euler–Lagrange Symmetry Additive Functional Equation via Direct and Fixed Point Technique (FPT)
title_short Intuitionistic Fuzzy Stability of an Euler–Lagrange Symmetry Additive Functional Equation via Direct and Fixed Point Technique (FPT)
title_sort intuitionistic fuzzy stability of an euler lagrange symmetry additive functional equation via direct and fixed point technique fpt
topic Euler–Lagrange symmetry additive functional equations
generalised Hyers–Ulam–Rassias
stability intuitionistic fuzzy normed spaces
fixed point technique
url https://www.mdpi.com/2073-8994/14/11/2454
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AT nabilmlaiki intuitionisticfuzzystabilityofaneulerlagrangesymmetryadditivefunctionalequationviadirectandfixedpointtechniquefpt
AT aimanmukheimer intuitionisticfuzzystabilityofaneulerlagrangesymmetryadditivefunctionalequationviadirectandfixedpointtechniquefpt