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The Kadison–Kaplansky conjecture for torsion-free groups
Kadison–Kaplansky conjecture. The algebra $C^*_r\Gamma$ contains no non-trivial projections. The conjecture is presented as a consequence of surjectivity of the Baum–Connes assembl…
opengroup-c-algebras kadison-kaplansky-conjecture operator-k-algebras
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The Kadison–Kaplansky conjecture for torsion-free groups