International Journal of Mathematics and Mathematical Sciences
Volume 18 (1995), Issue 4, Pages 777-788
doi:10.1155/S0161171295001001
Abstract
The fractional integrals Ia+α(x)φ of variable order α(x) are
considered. A theorem on mapping properties of Ia+α(x)φ in Holder-type spaces
Hλ(x) is proved, this being a generalization of the well known
Hardy-Littlewood theorem.