Local and global proper infiniteness for continuous C(X)-algebras
Résumé
We show that all unital continuous C*-bundles with properly infinite fibres are properly infinite C*-algebras if and only if the full unital free product of two copies of the Cuntz extensions $\Td$ of the Cuntz algebra $\mathcal{O}_2$ by the \cst-algebra of compact operators is a $K_1$-injective \cst-algebra.
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