Strongly self-absorbing *-dynamical systems
Strongly self-absorbing *-dynamical systems
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强自吸*动力系统
DOI:
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发表时间:
2015
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通讯作者:
G. Szabó
中科院分区:
文献类型:
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作者:
G. Szabó
We introduce and study strongly self-absorbing actions of locally compact groups on C-algebras. This is an equivariant generalization of a strongly self-absorbing C-algebra to the setting of Cdynamical systems. The main result is the following equivariant McDufftype absorption theorem: A cocycle action (α, u) : G y A on a separable C-algebra is cocycle conjugate to its tensorial stabilization with a strongly self-absorbing action γ : G y D, if and only if there exists an equivariant and unital ∗-homomorphism from D into the central sequence algebra of A. We also discuss some non-trivial examples of strongly self-absorbing actions.