Denny Ivanal Hakim and Hendra Gunawan
In this paper, we prove weak (p, q) inequalities for fractional integral operators on generalized non-homogeneous Morrey spaces for 1 ≤ p < q < ∞. The proof involves an inequality for the modified HardyLittlewood maximal operator and the Chebyshev inequality. Our results generalize those obtained by Garcia-Cuerva and Gatto  and also extend those by Sihwaningrum et al. .