Open AccessFuzzy Stability of Jensen-Type Quadratic Functional Equations
Author(s) -
Sun-Young Jang,
Jung Rye Lee,
Choonkil Park,
Dong Yun Shin
Publication year - 2009
Publication title -
abstract and applied analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.228
H-Index - 56
eISSN - 1687-0409
pISSN - 1085-3375
DOI - 10.1155/2009/535678
Subject(s) - mathematics , banach space , quadratic equation , type (biology) , stability (learning theory) , fuzzy logic , functional equation , pure mathematics , mathematical analysis , differential equation , geometry , ecology , machine learning , computer science , biology , linguistics , philosophy
We prove the generalized Hyers-Ulam stability of the following quadratic functional equations 2((+)/2)+2((−)/2)=()+() and (+)+(−)=22()+22() in fuzzy Banach spaces for a nonzero real number with ≠±1/2
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