참고문헌
- T. Aoki, On the stability of the linear transformation in Banach space, J. Math. Soc. Japan. 2(1950), 64-66. https://doi.org/10.2969/jmsj/00210064
- B. Boukhalene, E. Elqorachi, and Th. M. Rassias, On the generalized Hyers-Ulam stability of the quadratic functional equation with a general involution, Nonlinear Funct. Anal. Appl. 12(2007), 247-262.
- B. Boukhalene, E. Elqorachi, and Th. M. Rassias, On the Hyers-Ulam stability of approximately pexider mappings, Math. Ineqal. Appl. 11(2008), 805-818.
- P.W.Cholewa, Remarkes on the stability of functional equations, Aequationes Math., 27(1984), 76-86. https://doi.org/10.1007/BF02192660
- S. Czerwik, On the stability of the quadratic mapping in normed spaces, Abh. Math. Sem. Univ. Hamburg 62(1992), 59-64. https://doi.org/10.1007/BF02941618
- J. B. Diaz and B. Margolis, A fixed point theorem of the alternative, for contractions on a generalized complete metric space, Bulletin of the American Mathematical Society, 74(1968), 305309. https://doi.org/10.1090/S0002-9904-1968-11933-0
- P. Gavruta, A generalization of the Hyer-Ulam-Rassias stability of approximately additive mappings, J. Math. Anal. Appl. 184(1994), 431-436. https://doi.org/10.1006/jmaa.1994.1211
- D. H. Hyers, On the stability of the linear functional equation, Proc. Nat. Acad. Sci. 27(1941), 222-224. https://doi.org/10.1073/pnas.27.4.222
- S. M. Jung, Z. H. Lee, A fixed point approach to the stability of quadratic functional equation with involution, Fixed Point Theory Appl. 2008.
- Th. M. Rassias, On the stability of the linear mapping in Banach sapces, Proc. Amer. Math. Sco. 72(1978), 297-300. https://doi.org/10.1090/S0002-9939-1978-0507327-1
- F. Skof, Proprieta locali e approssimazione di operatori, Rend. Sem. Mat. Fis. Milano 53(1983), 113-129. https://doi.org/10.1007/BF02924890
- H. Stetkaer, Functional equations on abelian groups with involution, Aequationes Math. 54 (1997), 144-172. https://doi.org/10.1007/BF02755452
- S. M. Ulam, A collection of mathematical problems, Interscience Publ., New York, 1960.