“…Recently, many researchers have studied the Cauchy problem and long time behavior for nonlinear fractional differential and integro-differential equations and obtained many interesting results by using all kinds of fixed point theorems, for example, by Aghajani et al [2], Balachandran and Park [4], Barbagallo et al. [7], Cabrera et al [8], Dong et al [11], Furati and Tatar [12], Jagtap and Kharat [14], Kharat [15], Kharat et al [16], Kendre and Kharat [19], Kendre et al [18,20,21], Liang et al [24], N'Guérékata [26,27], Pierri and O'Regan [29], Ragusa and Scapellato [31], Ren et al [32], Ruggieri et al [33], Tate et al [37], Turmetov [40], Wang and Li [41], Zhou et al [42,43], Zhou and Jiao [44] and the references therein.…”