On weighted generalized fractional and Hardy-type operators acting between Morrey-type spaces

Abstract

Abstract We study weighted generalized Hardy and fractional operators acting from generalized Morrey spaces L p,φ ,(ℝ n ) into Orlicz-Morrey spaces L Φ,φ ,(ℝ n ). We deal with radial quasi-monotone weights and assumptions imposed on weights are given in terms of Zigmund-type integral conditions. We find conditions on φ,Φ, the weight w and the kernel of the fractional operator, which insures such a boundedness. We prove some pointwise estimates for weighted generalized fractional operators via generalized Hardy operators, which allow to obtain the weighted boundedness for fractional operators from those for Hardy operators. We provide also some easy to check numerical inequalities to verify the obtained conditions.