Constructing units in product systems

Liebscher, Volkmar; Skeide, Michael

doi:10.1090/S0002-9939-07-09056-9

Constructing units in product systems
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by Volkmar Liebscher and Michael Skeide PDF

Proc. Amer. Math. Soc. 136 (2008), 989-997 Request permission

Abstract:

We prove a criterion that allows us to construct units in product systems of correspondences with prescribed infinitesimal characterizations. This criterion summarizes proofs of known results and new applications. It also frees the hypotheses from the assumption that the units are contained in a product system of time ordered Fock modules.

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