Equivariant bundles and absorption
For a locally compact group \(G\) and a strongly self-absorbing \(G\)-algebra \((\mathcal{D},\delta)\), we obtain a new characterization of absorption of a strongly self-absorbing action using almost equivariant completely positive maps into the underlying algebra. The main technical tool to obtain...
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| creator | ough, Marzieh Gardella, Eusebio |
| description | For a locally compact group \(G\) and a strongly self-absorbing \(G\)-algebra \((\mathcal{D},\delta)\), we obtain a new characterization of absorption of a strongly self-absorbing action using almost equivariant completely positive maps into the underlying algebra. The main technical tool to obtain this characterization is the existence of almost equivariant lifts for equivariant completely positive maps, proved in recent work of the authors. This characterization is then used to show that an equivariant \(C_0(X)\)-algebra with \(\mathrm{dim}_{\mathrm{cov}}(X) |
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| subjects | Absorption Algebra |
| title | Equivariant bundles and absorption |
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