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arXiv:1809.00664 [math.FA]AbstractReferencesReviewsResources

Cogenerators of $2$-isometric Hilbert space endomorphism semigroups

Eskil Rydhe

Published 2018-09-03Version 1

We observe a necessary and sufficient condition for a bounded linear Hilbert space operator to be the cogenerator of a $C_0$-semigroup of $2$-isometries.

Categories: math.FA
Subjects: 47D06, 30H99, 47A63, 47B38
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