Abstract
The classical Hájek-LeCam convolution theorem assumes that the underlying parameter space is a locally compact group. Extensions to Hilbert spaces with Gaussian measures were given by Moussatat, Millar and von der Vaart. We propose an extension covering cylinder measures subject to a domination restriction on their finite dimensional projections. The proof is complex and leaves open a number of problems.
Research supported by NSF Grant DMS 9001710.
I am indebted to a referee for pointing out the works of Paterson (1983) and Wendel (1952).
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Le Cam, L. (1994). An Infinite Dimensional Convolution Theorem. In: Gupta, S.S., Berger, J.O. (eds) Statistical Decision Theory and Related Topics V. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-2618-5_30
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