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초록
Using the fixed point method and the direct method, we prove the Hyers-Ulam stability of the following additive-quadratic functional equation f(x+y,z+w) + f(x-y,z-w) - 2f(x,z) -2f(x,w)= 0.
키워드
Hyers-Ulam stability; fixed point method; additive-quadratic functional equation; direct method; INEQUALITIES
- 제목
- ULAM STABILITY OF AN ADDITIVE-QUADRATIC FUNCTIONAL EQUATION IN BANACH SPACES
- 저자
- Hwang, Inho; Park, Choonkil
- 발행일
- 2020-06
- 유형
- Article
- 권
- 14
- 호
- 2
- 페이지
- 421 ~ 436