RT Journal Article T1 A variational approach to perturbed impulsive fractional differential equations A1 Heidarkhani, Shapour A1 Cabada Fernández, Alberto A1 Afrouzi, Ghasem Alizadeh A1 Moradi, S. A1 Caristi, G. K1 Three solutions K1 Fractional differential equation K1 Impulsive effect K1 Variational methods K1 Critical point theory AB In this paper, perturbed systems of impulsive nonlinear fractional differential equations, including Lipschitz continuous nonlinear terms, are studied. The existence of at least three distinct weak solutions is obtained based on a recent three critical points theorem for differentiable functionals. In addition, examples are presented to illustrate the feasibility and effectiveness of the main results. PB Elsevier SN 0377-0427 YR 2018 FD 2018-10-15 LK https://hdl.handle.net/10347/45141 UL https://hdl.handle.net/10347/45141 LA eng NO S. Heidarkhani, A. Cabada, G.A. Afrouzi, S. Moradi, G. Caristi, A variational approach to perturbed impulsive fractional differential equations, Journal of Computational and Applied Mathematics, Volume 341, 2018, Pages 42-60, ISSN 0377-0427, https://doi.org/10.1016/j.cam.2018.02.033. DS Minerva RD 30 abr 2026