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A FIXED POINT ALTERNATIVE TO THE STABILITY OF A QUADRATIC α-FUNCTIONAL EQUATION IN FUZZY BANACH SPACES
被引:0
作者:
Park, Choonkil
[1
]
Lee, Jung Rye
[2
]
Shin, Dong Yun
[3
]
机构:
[1] Hanyang Univ, Res Inst Nat Sci, Seoul 04763, South Korea
[2] Daejin Univ, Dept Math, Kyeonggi 11159, South Korea
[3] Univ Seoul, Dept Math, Seoul 02504, South Korea
关键词:
fuzzy Banach space;
quadratic alpha-functional equation;
fixed point method;
Hyers-Ulam stability;
ASTERISK-HOMOMORPHISMS;
INEQUALITIES;
SUPERSTABILITY;
DERIVATIONS;
D O I:
暂无
中图分类号:
TP301 [理论、方法];
学科分类号:
081202 ;
摘要:
In this paper, we solve the following quadratic alpha-functional equation N (2f (x) + 2f (y) - f (x + y) - alpha(-2) f(alpha(x - y)), t) >= t/(t + phi(x, y) (0.1) in fuzzy normed spaces, where rho is a fixed real number with alpha(-1) not equal +/-root 3 Using the fixed point method, we prove the Hyers-Ulam stability of the quadratic alpha-functional equation (0.1) in fuzzy Banach spaces.
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页码:1241 / 1248
页数:8
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