%0 Journal Article %A J. M. Aldaz %A F. J. Pérez Lázaro %T Regularity of the Hardy–Littlewood maximal operator on block decreasing functions %J Studia Mathematica %D 2009 %P 253-277 %V 194 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4064/sm194-3-3/ %R 10.4064/sm194-3-3 %G en %F 10_4064_sm194_3_3