Authors: E MayerWolf M Zakai
Publish Date: 2004/12/27
Volume: 132, Issue: 2, Pages: 291-320
Abstract
The domain of definition of the divergence operator δ on an abstract Wiener space WHμ is extended to include W–valued and Open image in new window – valued “integrands” The main properties and characterizations of this extension are derived and it is shown that in some sense the added elements in δ’s extended domain have divergence zero These results are then applied to the analysis of quasiinvariant flows induced by Wvalued vector fields and among other results it turns out that these divergencefree vector fields “are responsible” for generating measure preserving flows
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