Functional equations, inequalities and applications

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On the stability of a quartic functional equation (2008, background): “The reader is referred to [2,5,6,13] and references therein for detailed information on stability of functional equations.”
Approximately generalized additive functions in several variables (2010, background): “We also refer the readers to the books [1, 14, 33, 38, 58].”
Isomorphisms between C*-ternary algebras (2006, unknown): “Rassias [26–29], F.”
Existence and Ulam stability for nonlinear implicit fractional differential equations with Hadamard derivative (2017, result): “[7, 12, 14, 15, 16, 33] and books [11, 25, 26, 27] on this subject have been published in order to generalize the results of Hyers in many directions.”
Fuzzy Almost Quadratic Functions (2007, background): “s provided a lot of inﬂuence in the development of what we now call Hyers–Ulam–Rassias stability of functional equations. We refer the interested readers for more information on such problems to e.g. [4, 8, 11, 12, 24, 25]. 2000 Mathematics Subject Classiﬁcation. Primary 46S40; Secondary 39B52, 39B8”
Homomorphisms and Derivations in $C^*$-Algebras (2007, background): “Rassias [44–47], Skof [48] and the references cited therein.”
On the stability of Euler–Lagrange type cubic mappings in quasi-Banach spaces (2007, background): “For more detailed definitions of such terminologies, we can refer to [1,9,10,19, 20].”