%0 Journal Article %A Yoshihiro Mizuta %A Aleš Nekvinda %A Tetsu Shimomura %T Optimal estimates for the fractional Hardy operator %J Studia Mathematica %D 2015 %P 1-19 %V 227 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4064/sm227-1-1/ %R 10.4064/sm227-1-1 %G en %F 10_4064_sm227_1_1