학술논문
STABILITY OF TWO GENERALIZED 3-DIMENSIONAL QUADRATIC FUNCTIONAL EQUATIONS
이용수 2
- 영문명
- 발행기관
- 충청수학회
- 저자명
- Sun-Sook Jin Yang-Hi Lee
- 간행물 정보
- 『Journal of the Chungcheong Mathematical Society』Volume 31, No. 1, 29~42쪽, 전체 14쪽
- 주제분류
- 자연과학 > 자연과학일반
- 파일형태
- 발행일자
- 2018.02.28
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국문 초록
영문 초록
In this paper, we investigate the stability of two func-tional equations
f (ax+by + cz) - abf (x + y) - bcf (y + z) - acf (x + z) + bcf (y) - a(a - b - c)f (x) - b(b - a)f (-y) - c(c - a - b)f (z) = 0,
f (ax+by + cz) + abf (x - y) + bcf (y - z) + acf (x - z)- a(a + b + c)f (x) - b(a + b + c)f (y) - c(a + b + c)f (z) = 0
by applying the direct method in the sense of Hyers and Ulam.
목차
1. Introduction
2. Stability of the functional equation (1.2)
3. Stability of the functional equation (1.3)
키워드
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