%0 Journal Article %A Xavier Tolsa %A Joan Verdera %T May the Cauchy transform of a non-trivial finite measure vanish on the support of the measure? %J Annales Fennici Mathematici %D 2006 %P 479-494 %V 31 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AFM_2006_31_2_a12/ %G en %F AFM_2006_31_2_a12