AbstractIn this paper, we obtain the general solution and the stability of the 2-variable quadratic functional equationf(x+y,z+w)+f(x−y,z−w)=2f(x,z)+2f(y,w). The quadratic form f(x,y)=ax2+bxy+cy2 is a solution of the above functional equation
Abstract Using the fixed-point method, we prove the generalized Hyers-Ulam stability of the function...
AbstractWe prove the generalized Hyers–Ulam–Rassias stability of generalized A-quadratic mappings of...
We study the stability properties of the equation F(y)−F(x)=(y−x)∑i=1naif(αix+βiy) which is motiva...
AbstractIn this paper, we solve a new functional equation f(2x+y)+f(2x−y)=4f(x+y)+4f(x−y)+24f(x)−6f(...
AbstractIn this paper, we obtain the general solution and the stability of the 2-variable quadratic ...
Stability problems concerning the functional equations of the form f(2x + y) = 4f(x) + f(y) + f(x +...
AbstractLet E1 and E2 be real linear spaces. In this paper, we determine the general solution for a ...
AbstractWe investigate some inequalities connected with the Hyers–Ulam stability of three functional...
We obtain the general solution and the stability of the m-variable quadratic functional equation f (...
AbstractIn this paper, we investigate the Hyers–Ulam–Rassias stability problems of a new quadratic f...
summary:Let $X, Y$ be complex vector spaces. Recently, Park and Th.M. Rassias showed that if a mappi...
AbstractIt is the purpose of this paper to investigate the stability problem of Ulam for an approxim...
AbstractIn this paper, we will investigate the generalized Hyers–Ulam–Rassias stability of an n-dime...
In the present paper, we determine the solutions f : S!H of the generalized quadratic functional equ...
AbstractIn this paper we obtain the general solution of the quadratic Jensen type functional equatio...
Abstract Using the fixed-point method, we prove the generalized Hyers-Ulam stability of the function...
AbstractWe prove the generalized Hyers–Ulam–Rassias stability of generalized A-quadratic mappings of...
We study the stability properties of the equation F(y)−F(x)=(y−x)∑i=1naif(αix+βiy) which is motiva...
AbstractIn this paper, we solve a new functional equation f(2x+y)+f(2x−y)=4f(x+y)+4f(x−y)+24f(x)−6f(...
AbstractIn this paper, we obtain the general solution and the stability of the 2-variable quadratic ...
Stability problems concerning the functional equations of the form f(2x + y) = 4f(x) + f(y) + f(x +...
AbstractLet E1 and E2 be real linear spaces. In this paper, we determine the general solution for a ...
AbstractWe investigate some inequalities connected with the Hyers–Ulam stability of three functional...
We obtain the general solution and the stability of the m-variable quadratic functional equation f (...
AbstractIn this paper, we investigate the Hyers–Ulam–Rassias stability problems of a new quadratic f...
summary:Let $X, Y$ be complex vector spaces. Recently, Park and Th.M. Rassias showed that if a mappi...
AbstractIt is the purpose of this paper to investigate the stability problem of Ulam for an approxim...
AbstractIn this paper, we will investigate the generalized Hyers–Ulam–Rassias stability of an n-dime...
In the present paper, we determine the solutions f : S!H of the generalized quadratic functional equ...
AbstractIn this paper we obtain the general solution of the quadratic Jensen type functional equatio...
Abstract Using the fixed-point method, we prove the generalized Hyers-Ulam stability of the function...
AbstractWe prove the generalized Hyers–Ulam–Rassias stability of generalized A-quadratic mappings of...
We study the stability properties of the equation F(y)−F(x)=(y−x)∑i=1naif(αix+βiy) which is motiva...
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