Decompositions of Beurling Type for E0-Semigroups
Rolf Gohm
math.OAarXiv:math/0412107
Abstract
We define tensor product decompositions of E0-semigroups with a structure analogous to a classical theorem of Beurling. Such decompositions can be characterized by adaptedness and exactness of unitary cocycles. For CCR-flows we show that such cocycles are convergent.
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