%0 Journal Article %T Mansfield's imprimitivity theorem for arbitrary closed subgroups %A Astrid an Huef %A Iain Raeburn %J Mathematics %D 2002 %I arXiv %X Let $\delta$ be a nondegenerate coaction of G on a C*-algebra B, and let H be a closed subgroup of G. The dual action of H on $B\times_\delta G$ is proper and saturated in the sense of Rieffel, and the generalised fixed-point algebra is the crossed product of B by the homogeneous space G/H. The resulting Morita equivalence is a version of Mansfield's imprimitivity theorem which requires neither amenability nor normality of H. %U http://arxiv.org/abs/math/0205060v1