... can write|un1x− unx|≤ϕLn−1x − an−1n − 1!dTu1,u1.3.4Hindawi Publishing CorporationFixed Point Theory and ApplicationsVolume 2010, Article ... Point Theory and ApplicationsVolume 2010, Article ID 927640, 6 pagesdoi:10.1155/2010/927640 Research Article Hyers-Ulam Stability of NonlinearIntegral EquationMortaza Gachpazan and Omid BaghaniDepartment ... interested reader can alsofind further details in the book of Kuczma see 7, chapter XVII. Examples of some recentdevelopments, discussions, and critiques of that idea of stability can be found,...