Extremal invariant states with a spectru
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Akitaka Kishimoto
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Article
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1979
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Springer
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English
β 191 KB
If the energy spectrum of an extremal invariant state w is not the whole real line, it is shown that co is either pure or uniquely decomposed into nmtually disjoint pure states in the way that co = X-~fXo~oatdt where 4~ is a pure state satisfying q~oax = 4~ with X > 0. Next we give a slightly genera