%0 Journal Article %A Almgren, Frederick J. %A Lieb, Elliott H. %T Symmetric decreasing rearrangement is sometimes continuous %J Journal of the American Mathematical Society %D 1989 %P 683-773 %V 02 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1989-1002633-4/ %R 10.1090/S0894-0347-1989-1002633-4 %F 10_1090_S0894_0347_1989_1002633_4