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Operator algebras

Operator algebras

Official catalogue 285–303.

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Catalogues in this field

Official catalogue numbers
285

Counterexamples to Baum–Connes and Kadison–Kaplansky

Three proof overviews on the kernel and image of coefficient-free reduced assembly and projections in reduced group C*-algebras of torsion-free groups.

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Proof overviews (3)Official catalogue order
  1. A torsion-free counterexample to reduced Baum–Connes injectivity
  2. A torsion-free counterexample to the Kadison–Kaplansky projection conjecture
  3. An irrational-trace counterexample to reduced Baum–Connes

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