General uniqueness theorem concerning the stability of additive ...?

General uniqueness theorem concerning the stability of additive ...?

WebMar 23, 2024 · Cauchy's functional equation is the equation f(x+y)=f(x)+f(y). It was proved by Cauchy in 1821 that the only continuous solutions of this functional equation … WebNov 25, 2024 · Using the fixed point method, we prove the Hyers–Ulam stability of a cubic and quartic functional equation and of an additive and quartic functional equation in matrix Banach algebras. ... Cadariu, L., Radu, V.: On the stability of the Cauchy functional equation: a fixed point approach. Grazer Math. Ber. 346, 43–52 (2004) black diamond trail sport 3 review WebDec 1, 2011 · The stability of the additive Cauchy equation is related to the stability of the equation (in a single variable) f ( x) = 2 f ( x 2). One could first study the stability of this equation (even more generally one, f ( a x) = b f ( x)) and then derive the result of Theorem 2.2 (this approach is studied, in the classical case, for example in [7] ). WebThe first class of equations is derived from the sum of the squares of the alternative series and the second one is obtained from the Abstract: In this paper, the authors introduce two new classes of series type additive functional Equations (FEs). adelaide crows game time today WebIn this paper, using the fixed point and direct methods, we prove the Hyers-Ulam-Rassias approximation (briefly, HUR-approximation) of a Cauchy-Jensen additive (briefly, CJA) functional equation in various normed spaces. MSC:39B52, 39B82, 47H10, WebJan 1, 2011 · The functional equation f (x+y)=f (x)+f (y) is the most famous among the functional equations. Already in 1821, A. L. Cauchy solved it in the class of continuous … adelaide crows game today score WebApr 20, 2024 · Yes, this is true. The thing to remember about additive functions on R is that they are automatically linear on the rational numbers due to the equations. f ( n x) = n f ( x) f ( 1 n) = 1 n f ( x) which follow from additivity. So f ( q) = q f ( 1) for rational q, and if we can use any kind of continuity argument we can fill in the gaps to show ...

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