%0 Journal Article %A Chong, Kong-Ming %T Variation Reducing Properties of Decreasing Rearrangements %J Canadian journal of mathematics %D 1975 %P 330-336 %V 27 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-040-2/ %R 10.4153/CJM-1975-040-2 %F 10_4153_CJM_1975_040_2