%0 Journal Article %A M. Vergne %T Formal equivariant $\widehat A$ class, splines and multiplicities of the index of transversally elliptic operators %J Izvestiya. Mathematics %D 2016 %P 958-993 %V 80 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2016_80_5_a7/ %G en %F IM2_2016_80_5_a7