“…Very important contributions to this subject were brought by Ulam [15], Rassias [10], Hyers et al [4], Jung [5], Guo et al [3], Kolmanovskiȋ and Myshkis [6], and Radu [9]. Our results are connected to some recent papers of Castro and Ramos [2] and Jung [5] (where integral and differential equations are considered), Bota-Boriceanu and Petrușel [1], and Petru et al [8] (where the Ulam-Hyers stability for operatorial equations and inclusions is discussed). Following [7,13], in present paper we will investigate Ulam-Hyers stability and generalized Ulam-Hyers-Rassias stability for the following differential equation with modification of the argument:…”