hal-00474026, version 1
The $K$-groups and the index theory of certain comparison $C^*$-algebras
Noncommutative Geometric Methods in Global Analysis (2009)
Résumé : We compute the $K$-theory of comparison $C^*$-algebra associated to a manifold with corners. These comparison algebras are an example of the abstract pseudodifferential algebras introduced by Connes and Moscovici \cite{M3}. Our calculation is obtained by showing that the comparison algebras are a homomorphic image of a groupoid $C^*$-algebra. We then prove an index theorem with values in the $K$-theory groups of the comparison algebra.
- 1 :
- Université Paul Sabatier [UPS] - Toulouse III – Université Toulouse le Mirail - Toulouse II – Université des Sciences Sociales - Toulouse I – Institut National des Sciences Appliquées (INSA) - Toulouse – CNRS : UMR5219
- 2 :
- The Pennsylvania State University
- Domaine : Mathématiques/K-théorie et homologie
Mathématiques/Algèbres d'opérateurs - Mots-clés : Comparison algebra – Index theory – Manifolds with corners
- hal-00474026, version 1
- http://hal.archives-ouvertes.fr/hal-00474026
- oai:hal.archives-ouvertes.fr:hal-00474026
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- Soumis le : Dimanche 18 Avril 2010, 17:37:24
- Dernière modification le : Lundi 19 Avril 2010, 08:47:10



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