École Polytechnique Fédérale de Lausanne

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math.KT2004

Unbounded symmetric operators in $K$ -homology and the Baum-Connes Conjecture

Hela Bettaieb, Michel Matthey, Alain Valette

Using the unbounded picture of analytical K-homology, we associate a well-defined K-homology class to an unbounded symmetric operator satisfying certain mild technical conditions.…

math.KT2003★ 2 cited

Codescent theory II: Cofibrant approximations

Paul Balmer, Michel Matthey

We establish a general method to produce cofibrant approximations in the model category $U_{S} (C, D)$ of $S$ -valued $C$ -indexed diagrams with $D$ -weak equivalences and $D$ -fibrations.…

Unbounded symmetric operators in K-homology and the Baum-Connes Conjecture

Codescent theory II: Cofibrant approximations

Unbounded symmetric operators in $K$ -homology and the Baum-Connes Conjecture