%0 Journal Article %A Tomasz Kiwerski %A Paweł Kolwicz %A Lech Maligranda %T Isomorphic and isometric structure of the optimal domains for Hardy-type operators %J Studia Mathematica %D 2021 %P 45-89 %V 260 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4064/sm200211-8-9/ %R 10.4064/sm200211-8-9 %G en %F 10_4064_sm200211_8_9