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The Hyers-Ulam stability of a functional equation deriving from quadratic and cubic functions in quasi- β -normed spaces[J] . Li Guang Wang,Bo Liu.Acta Mathematica Sinica, English Series . 2010 (12)
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Generalization of Ulam stability problem for Euler–Lagrange quadratic mappings[J] . Hark-Mahn Kim,John Michael Rassias.Journal of Mathematical Analysis and Applications . 2007 (1)
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On the Hyers–Ulam–Rassias stability of generalized quadratic mappings in Banach modules[J] . Chun-Gil Park.Journal of Mathematical Analysis and Applications . 2003 (1)
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The generalized Hyers–Ulam–Rassias stability of a cubic functional equation[J] . Kil-Woung Jun,Hark-Mahn Kim.Journal of Mathematical Analysis and Applications . 2002 (2)
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On the stability of the linear mapping in Banach spaces[J] . Themistocles M. Rassias.Proceedings of the American Mathematical Society . 1978 (2)