An identification of the Baum-Connes and Davis-Lück assembly maps

The Baum–Connes conjecture predicts that a certain assembly map is an isomorphism. We identify the homotopy theoretical construction of the assembly map by Davis and L¨uck [8] with the category theoretical construction by Meyer and Nest [22]. This extends the result of Hambleton and Pedersen [12] to...

Verfasser: Kranz, Julian
Dokumenttypen:Artikel
Medientypen:Text
Erscheinungsdatum:2021
Publikation in MIAMI:26.10.2021
Datum der letzten Änderung:26.10.2021
Quelle:Münster Journal of Mathematics, 14 (2021), S. 509-536
Verlag/Hrsg.: Mathematisches Institut (Universität Münster)
Angaben zur Ausgabe:[Electronic ed.]
Fachgebiet (DDC):510: Mathematik
Lizenz:InC 1.0
Sprache:English
Format:PDF-Dokument
URN:urn:nbn:de:hbz:6-06089642240
Weitere Identifikatoren:DOI: 10.17879/06089641898
Permalink:https://nbn-resolving.de/urn:nbn:de:hbz:6-06089642240
Onlinezugriff:mjm_2021_14_509-536.pdf

The Baum–Connes conjecture predicts that a certain assembly map is an isomorphism. We identify the homotopy theoretical construction of the assembly map by Davis and L¨uck [8] with the category theoretical construction by Meyer and Nest [22]. This extends the result of Hambleton and Pedersen [12] to arbitrary coefficients. Our approach uses abstract properties rather than explicit constructions and is formally similar to Meyer’s and Nest’s identification of their assembly map with the original construction of the assembly map by Baum, Connes and Higson [2].