Generalized Hyers–Ulam stability of mixed-type additive-quartic mappings in 2-Banach spaces Arumugam Ponmana Selvan, Masakazu Onitsuka, Velu Lakshmi Demonstratio Mathematica, 2026 This paper aims to explore the stability of a mixed-type additive-quartic functional equation in 2-Banach spaces via the direct method. We categorize mappings satisfying a certain functional inequality into odd, even, and general mappings, and establish generalized Hyers–Ulam stability for each category. For odd mappings, we demonstrate that the exact solution, represented by an additive mapping, is close to the approximate solution satisfying the functional inequality. For even mappings, the exact solution, represented by a quartic mapping, is close to the approximate solution. Furthermore, we show that for general mappings, the exact solution, represented by the sum of an additive and a quartic mapping, is close to the approximate solution.
Stability and Instability of an Apollonius-Type Functional Equation Ponmana Selvan Arumugam, Won-Gil Park, Jaiok Roh Mathematics, 2024 For the inner product space, we have Appolonius’ identity. From this identity, Park and Th. M. Rassias induced and investigated the quadratic functional equation of the Apollonius type. And Park and Th. M. Rassias first introduced an Apollonius-type additive functional equation. In this work, we investigate an Apollonius-type additive functional equation in 2-normed spaces. We first investigate the stability of an Apollonius-type additive functional equation in 2-Banach spaces by using Hyers’ direct method. Then, we consider the instability of an Apollonius-type additive functional equation in 2-Banach spaces.
Mittag-Leffler-Hyers-Ulam stability for a first-and second-order nonlinear differential equations using Fourier transform Arunachalam Selvam, Sriramulu Sabarinathan, Arumugam Ponmana Selvan Demonstratio Mathematica, 2024 In this article, we apply the Fourier transform to prove the Hyers-Ulam and Hyers-Ulam-Rassias stability for the first- and second-order nonlinear differential equations with initial conditions. Additionally, we extend the results to investigate the Mittag-Leffler-Hyers-Ulam and Mittag-Leffler-Hyers-Ulam-Rassias stability of these differential equations using the proposed method.
Ulam stability of quadratic n-dimensional functional equations in non-Archimedean quasi- -normed spaces P Elumalai, S Sangeetha, S Donganont, C Park, AP Selvan The Journal of Analysis, 1-17 , 2026 2026
GENERALIZED HYERS–ULAM STABILITY OF SECOND-ORDER LINEAR DIFFERENTIAL EQUATIONS USING LAPLACE TRANSFORM A Ponmana Selvan, M Onitsuka Rocky Mountain Journal of Mathematics 56 (1), 1-11 , 2026 2026
Generalized Hyers–Ulam stability of mixed-type additive-quartic mappings in 2-Banach spaces A Ponmana Selvan, M Onitsuka, V Lakshmi Demonstratio Mathematica 59 (1), 20250237 , 2026 2026
Hyers-Ulam (HU) Stability and Mittag-Leffler-HU Stability of Additive Brownian Motion (Louis Bachelier's Model) S Sankar, P Pushpa, A Ponmana Selvan EPJ Web of Conferences 363, 03002 , 2026 2026
ULAM STABILITY OF LINEAR DIFFERENTIAL EQUATIONS OF HIGHER ORDER USING ABOODH TRANSFORM S Baskaran, R Murali, AP Selvan, M Donganont, C Park Nonlinear Functional Analysis and Applications, 465-475 , 2025 2025
AN APPLICATION OF EL-ZAKI TRANSFORM TO VARIOUS TYPES OF ULAM STABILITY OF LINEAR DIFFERENTIAL EQUATIONS R Murali, AP Selvan, S Donganont, C Park Nonlinear Functional Analysis and Applications, 447-464 , 2025 2025 Citations: 1
SUMUDU TRANSFORM AND THE STABILITY OF SECOND ORDER LINEAR DIFFERENTIAL EQUATIONS S Baskaran, R Murali, C Park, AP Selvan Journal of Mathematical Inequalities 18 (3), 847-864 , 2024 2024 Citations: 4
Mittag-Leffler-Hyers-Ulam stability for a first-and second-order nonlinear differential equations using Fourier transform A Selvam, S Sabarinathan, AP Selvan Demonstratio Mathematica 57 (1), 20240033 , 2024 2024 Citations: 4
Stability and Instability of an Apollonius-Type Functional Equation PS Arumugam, WG Park, J Roh Mathematics 12 (14), 2274 , 2024 2024 Citations: 1
Mohand Transforms and its Application to Stability of Differential Equation Baskaran, Murali, PonmanaSelvan Journal of Mathematics and Computer science 35 (1), 25 – 34 , 2024 2024 Citations: 2
Mahgoub Transform and Ulam Stability of Logistic Growth Differential Equation A Mohanapriya, AP Selvan Journal of Computational Analysis and Applications 33 (8) , 2024 2024
Aboodh Transform and Ulam Stability of Second-Order Linear Differential Equations R Murali, AP Selvan, S Baskaran, C Park, MT Rassias Mathematical Analysis, Differential Equations and Applications, 587-616 , 2024 2024 Citations: 4
Ulam Type Stabilities of n -th Order Linear Differential Equations Using Gronwall’s Inequality A Ponmana Selvan, M Onitsuka Results in Mathematics 78 (5), 198 , 2023 2023 Citations: 1
Stabilities of some Fredholm integral equations AM Simões, AP Selvan AIP Conference Proceedings 2849 (1), 380006 , 2023 2023
Generalized Hyers-Ulam stability of a bi-quadratic mapping in non-Archimedean spaces R Kalaichelvana, U Jayaramana, PS Arumugamb J. Math. Comput. Sci. 31 (4), 393-402 , 2023 2023 Citations: 8
Laplace transform and Hyers-Ulam stability of differential equation for logistic growth in a population model PS Arumugam, G Gandhi, S Murugesan, V Ramachandran Communications of the Korean Mathematical Society 38 (4), 1163-1173 , 2023 2023 Citations: 3
Stability of linear differential equation of higher order using Mahgoub transforms R Murali, A Ponmana Selvan, S Baskaran 2023 Citations: 5
Generalized Hyers-Ulam stability of a bi-quadratic mapping in non-Archimedean spaces K Ramakrishnan, J Uma, A Ponmana Selvan 2023
Hyers–Ulam stability and hyperstability of a Jensen-type functional equation on 2-Banach spaces AP Selvan, A Najati Journal of Inequalities and Applications 2022 (1), 32 , 2022 2022 Citations: 21
Mittag-Leffler-Hyers-Ulam Stability of a linear differential equations of second order using Laplace transform AP Selvan, R Veerasivaji, V Kamalakannan, M Saravanan J. Math. Comput. Sci. 12, Article ID 74 , 2022 2022
MOST CITED SCHOLAR PUBLICATIONS
Ulam stability of linear differential equations using Fourier transform M Ramdoss, P Selvan-Arumugam, C Park AIMS MATHEMATICS 5 (2) , 2020 2020 Citations: 44
HYERS-ULAM-RASSIAS STABILITY FOR THE LINEAR ORDINARY DIFFERENTIAL EQUATION OF THIRD ORDER R Murali, A Ponmana Selvan Kragujevac Journal of Mathematics 42 (4), 579 - 590 , 2018 2018 Citations: 38
On the generalized Hyers-Ulam stability of linear ordinary differential equations of higher order R Murali, AP Selvan International Journal of Pure and Applied Mathematics 117 (12), 317-326 , 2017 2017 Citations: 35
On the Generlized Hyers-Ulam Stability of Linear Ordinary Differential Equations of Higher Order R Murali, A Ponmana Selvan International Journal of Pure and Applied Mathematics 117 (12), 317 - 326 , 2017 2017 Citations: 35
Aboodh transform and the stability of second order linear differential equations R Murali, AP Selvan, C Park, JR Lee Advances in Difference Equations 2021 (1), 296 , 2021 2021 Citations: 32
Mittag-Leffler-Hyers-Ulam Stability of Linear Differential Equations using Fourier Transforms JM Rassias, R Murali, AP Selvan Journal Computational Analysis and Applications 29 (1), 68-85 , 2021 2021 Citations: 32
Mittag-Leffler-Hyers-Ulam Stability of Linear Differential Equations using Fourier Transforms. JM Rassias, R Murali, AP Selvan Journal of Computational Analysis & Applications 29 (1) , 2021 2021 Citations: 32
MAHGOUB TRANSFORM AND HYERS–ULAM STABILITY OF FIRST–ORDER LINEAR DIFFERENTIAL EQUATIONS SMO JUNG, A PONMANA SELVAN, R MURALI Journal of Mathematical Inequalities 15 (3), 1201–1218 , 2021 2021 Citations: 27
Hyers-Ulam stability of n th order linear differential equation R Murali, AP Selvan Proyecciones (Antofagasta) 38 (3), 553-566 , 2019 2019 Citations: 27
Fourier Transforms and Ulam Stabilities of Linear Differential Equations R Murali, AP Selvan Frontiers in Functional Equations and Analytic Inequalities 2019, 195 -217 , 2019 2019 Citations: 22
Hyers–Ulam stability and hyperstability of a Jensen-type functional equation on 2-Banach spaces AP Selvan, A Najati Journal of Inequalities and Applications 2022 (1), 32 , 2022 2022 Citations: 21
Mittag-Leffler–Hyers–Ulam stability of a linear differential equations of first order using Laplace transforms R Murali, AP Selvan Canad. J. Appl. Math 2 (2), 47-59 , 2020 2020 Citations: 21
Hyers–Ulam stability for an nth order differential equation using fixed point approach R Murali, C Park, AP Selvan J. Appl. Anal. Comput 11 (2), 614-631 , 2021 2021 Citations: 19
HYERS - ULAM STABILITY OF nth ORDER LINEAR DIFFERENTIAL EQUATION WITH INITIAL AND BOUNDARY CONDITIONS K Ravi, R Murali, A Ponmana Selvan Asian Journal of Mathematics and Computer Research 11 (3), 201-207 , 2016 2016 Citations: 19
Hyers–Ulam stability of first-order linear differential equations using Aboodh transform R Murali, AP Selvan, S Baskaran, C Park, JR Lee Journal of Inequalities and Applications 2021 (1), 133 , 2021 2021 Citations: 18
Hyers-Ulam stability of a free and forced vibrations R Murali, AP Selvan Kragujevac Journal of Mathematics 44 (2), 299-312 , 2020 2020 Citations: 18
ULAM STABILITY OF A GENERAL nth ORDER LINEAR DIFFERENTIAL EQUATION WITH CONSTANT COEFFICIENTS K Ravi, R Murali, AP Selvan Asian Journal of Mathematics and Computer Research 11 (1), 61-68 , 2016 2016 Citations: 17
Hyers-Ulam stability of a certain Fredholm integral equation A Simões, P Selvan Turkish Journal of Mathematics 46 (1), 87-98 , 2022 2022 Citations: 12
Approximate solution of the special type differential equation of higher order using Taylor’s series AP Selvan, S Sabarinathan, A Selvam J. Math. Comput. Sci 27, 131-141 , 2022 2022 Citations: 9
Generalized Hyers-Ulam stability of a bi-quadratic mapping in non-Archimedean spaces R Kalaichelvana, U Jayaramana, PS Arumugamb J. Math. Comput. Sci. 31 (4), 393-402 , 2023 2023 Citations: 8