Srivastava, H.M.El-Sayed, Ahmed M. A.Gaafar, Fatma M.2020-10-192020-10-1920182018Srivastava, H. M., El-Sayed, A. M. A., & Gaafar, F. M. (2018). A Class of Nonlinear Boundary Value Problems for an Arbitrary Fractional-Order Differential Equation with the Riemann- Stieltjes Functional Integral and Infinite-Point Boundary Conditions. Symmetry. 10(10), 1- 13. https://doi.org/10.3390/sym10100508.https://doi.org/10.3390/sym10100508http://hdl.handle.net/1828/12221In this paper, we investigate the existence of an absolute continuous solution to a class of first-order nonlinear differential equation with integral boundary conditions (BCs) or with infinite-point BCs. The Liouville-Caputo fractional derivative is involved in the nonlinear function. We first consider the existence of a solution for the first-order nonlinear differential equation with m-point nonlocal BCs. The existence of solutions of our problems is investigated by applying the properties of the Riemann sum for continuous functions. Several examples are given in order to illustrate our results.ennonlinear boundary value problemsfractional-order differential equationsRiemann-Stieltjes functional integralLiouville-Caputo fractional derivativeinfinite-point boundary conditionsadvanced and deviated argumentsexistence of at least one solutionArticleDepartment of Mathematics and Statistics