Some remarks on the GNS representations of topological $^*$-algebras

dc.creatorIguri, Sergio
dc.creatorCastagnino, Mario
dc.date2007-11-20
dc.date2008-02-26
dc.date.accessioned2026-07-07T09:27:35Z
dc.date.available2026-07-07T09:27:35Z
dc.descriptionAfter an appropriate restatement of the GNS construction for topological $^*$-algebras we prove that there exists an isomorphism among the set $\cycl(A)$ of weakly continuous strongly cyclic $^*$-representations of a barreled dual-separable $^*$-algebra with unit $A$, the space $\hilb_A(A^*)$ of the Hilbert spaces that are continuously embedded in $A^*$ and are $^*$-invariant under the dual left regular action of $A$ and the set of the corresponding reproducing kernels. We show that these isomorphisms are cone morphisms and we prove many interesting results that follow from this fact. We discuss how these results can be used to describe cyclic representations on more general inner product spaces.
dc.description34 pages. Minor changes. To appear in J. Math. Phys. 49 (4) Apr-08
dc.identifierhttps://arxiv.org/abs/0711.3056
dc.identifierhttp://arxiv.org/abs/0711.3056
dc.identifierJ. Math. Phys. 49, 033510 (2008)
dc.identifierdoi:10.1063/1.2897032
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157154
dc.subjectMathematical Physics
dc.subject16G99, 46H15, 47L90, 81P99, 81R15
dc.titleSome remarks on the GNS representations of topological $^*$-algebras
dc.typetext

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