논문
A functional equation originating from quadratic forms
- 저자Jae-Hyeong Bae and Won-Gil Park
- 학술지Journal of Mathematical Analysis and Applications 326/2
- 등재유형
- 게재일자(2007)
In 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.？
In 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.？
