%0 Journal Article %A Piotr Graczyk %A Patrice Sawyer %T A Sharp Criterion for the Existence of the Density in the Product Formula on Symmetric Spaces of Type An %J Journal of Lie Theory %D 2010 %P 751-766 %V 20 %N 4 %U http://geodesic.mathdoc.fr/item/JOLT_2010_20_4_a7/ %F JOLT_2010_20_4_a7