Extremal invariant states
Derek W. Robinson, David Ruelle (1967)
Annales de l'I.H.P. Physique théorique
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Displaying similar documents to “Complete positivity and asymptotic abelianness”
Extremal invariant states
Central decomposition of Poincaré-invariant nets of local field algebras and absence of spontaneous breaking of the Lorentz group
Wulf Driessler, Stephen J. Summers (1985)
Annales de l'I.H.P. Physique théorique
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Unbounded derivations of von Neumann algebras
Ola Bratteli, Derek W. Robinson (1976)
Annales de l'I.H.P. Physique théorique
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Control on weak asymptotic abelianness with the help of the crossed product construction
Heide Narnhofer (1998)
Banach Center Publications
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The crossed product construction is used to control in some examples the asymptotic behaviour of time evolution. How invariant states on a small algebra can be extended to invariant states on a larger algebra reduces to solving an eigenvalue problem. In some cases (the irrational rotation algebra) this eigenvalue problem has only trivial solutions and by reduction of the subalgebra control on all invariant states can be found.
Inner automorphisms of hyperfinite factors and Bogoliubov transformations
A. L. Carey (1984)
Annales de l'I.H.P. Physique théorique
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Temperature states on gauge groups
A. L. Carey, K. C. Hannabuss (1992)
Annales de l'I.H.P. Physique théorique
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