Results 81 to 90 of about 115 (102)

Almost partial generalized Jordan derivations: a fixed point approach

, 2012
Jung Lee, Choonkil Park, Madjid Gordji, ���������   +3 more
core   +1 more source

An AQCQ-functional equation in matrix Banach spaces

, 2013
Jung Lee, Shin, Dong Yun, Lee, Jung Rye, Park, Choonkil, Choonkil Park, Dong Shin, ���������   +6 more
core   +1 more source

On Approximation of Approximately Generalized Quadratic Functional Equation via Lipschitz Criteria

Quaestiones Mathematicae, 2019
Let G be an Abelian group with a metric d and E ba a normed space. For any f : G → E we define the generalized quadratic difference of the function f by the formulaQkf(x, y) := f(x + ky) + f(x - ky) - f(x + y) - f(x - y) - 2(k2 - 1) f(y)for all x, y ∈ G ...
Iz-iddine EL-Fassi
exaly   +1 more source

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On Stability and Nonstability of Systems of Functional Equations

Quaestiones Mathematicae, 2021
Bahman Hayati, Hamid Khodaei, Madjid Eshaghi   +2 more
exaly  

Hyers--Ulam Stability of a Polynomial Equation

Banach Journal of Mathematical Analysis, 2009
Yongjin Li
exaly  

Stability of a Jensen Type Functional Equation

Banach Journal of Mathematical Analysis, 2007
Chung Soon-yeong, Young-Su Lee
exaly  

On Some Functional Equations and Their Stability

Journal of Interdisciplinary Mathematics, 2020
Abbas Najati, Prasanna K Sahoo
exaly  

Lipschitz Stability of the k-Quadratic Functional Equation

Quaestiones Mathematicae, 2017
Iz-iddine EL-Fassi, Samir Kabbaj, Abdellatif chahbi   +2 more
exaly  

The Hyers-Ulam Stability for Two Functional Equations in a Single Variable

Banach Journal of Mathematical Analysis, 2008
Dorel Mihet
exaly  

Stability of a Functional Equation Related to Distance Measures - II

Annals of Functional Analysis, 2010
Prasanna K Sahoo, Gwang Hui Kim
exaly