On localized automorphisms of the Cuntz algebras which preserve the diagonal subalgebra

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Abstract

In 1978, Cuntz raised the problem of classifying automorphisms of On which leave both the diagonal and the core UHF-subalgebra invariant. In this note, we start developing a machinery that might be useful towards this goal. In particular, we give a practical criterion of invertibility of endomorphisms of On corresponding to unitaries in the normalizer of the diagonal inside the UHF-subalgebra. We also analyze the action of such localized automorphisms on the spectrum of the diagonal thus obtaining criteria of outerness.
OriginalsprogEngelsk
TitelNew development of Operator Algebras
RedaktørerKengo Matsumoto
Antal sider7
Vol/bind1587
Publikationsdato2008
Sider109-115
StatusUdgivet - 2008
Udgivet eksterntJa
BegivenhedNew development of Operator Algebras - Kyoto, Japan
Varighed: 10. sep. 200712. sep. 2007

Konference

KonferenceNew development of Operator Algebras
Land/OmrådeJapan
ByKyoto
Periode10/09/200712/09/2007
NavnR.I.M.S. Kokyuroku
Nummer1587
ISSN1880-2818

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