Stability of the Cauchy-Jensen functional equation in -algebras: a fixed point approach.
Park, Choonkil, An, Jong Su (2008)
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Park, Choonkil, An, Jong Su (2008)
Fixed Point Theory and Applications [electronic only]
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Park, Choonkil, Park, Won-Gil, Najati, Abbas (2009)
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Park, Choonkil (2008)
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Cho, Young-Sun, Kim, Hark-Mahn (2007)
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Bae, Jae-Hyeong, Park, Won-Gil (2010)
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Kim, Gwang Hui, Lee, Yang-Hi (2010)
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Roh, Jaiok, Chang, Ick-Soon (2008)
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Park, Choonkil (2008)
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In 1978 P. M. Gruber (Trans. Amer. Math. Soc. 245 (1978), 263–277) imposed the following general problem or Ulam type problem: “Suppose a mathematical object satisfies a certain property approximately. Is it then possible to approximate this objects by objects, satisfying the property exactly?" The afore-mentioned problem of P. M. Gruber is more general than the following problem imposed by S. M. Ulam in 1940 (Intersci, Publ., Inc., New York 1960): “Give conditions in order for a linear...
Park, Choonkil, Cho, Young Sun, Han, Mi-Hyen (2007)
Journal of Inequalities and Applications [electronic only]
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