Finitely summable γ-elements for word-hyperbolic groups
Résumé
We present two explicit combinatorial constructions of finitely summable reduced "Gamma"-elements γ r ∈ KK(C * r (Γ), C) for any word-hyperbolic group (Γ, S) and obtain summability bounds for them in terms of the cardinality of the generating set S ⊂ Γ and the hyperbolicity constant of the associated Cayley graph.
Domaines
K-théorie et homologie [math.KT]Origine | Fichiers produits par l'(les) auteur(s) |
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