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Wir sind gerne für Sie daA quick description of the conjecture The Baum-Connes conjecture is part of Alain Connes'tantalizing "noncommuta tive geometry" programme [18]. It is in some sense the most "commutative" part of this programme, since it bridges with classical geometry and topology. Let r be a countable group. The Baum-Connes conjecture identifies two objects associated with r, one analytical and one geometrical/topological. The right-hand side of the conjecture, or analytical side, involves the K theory of the reduced C*-algebra c;r, which is the C*-algebra generated by r in 2 its left regular representation on the Hilbert space C(r). The K-theory used here, Ki(C;r) for i = 0, 1, is the usual topological K-theory for Banach algebras, as described e.g. in [85]. The left-hand side of the conjecture, or geometrical/topological side RKf(Er) (i=O,I), is the r-equivariant K-homology with r-compact supports of the classifying space Er for proper actions of r. If r is torsion-free, this is the same as the K-homology (with compact supports) of the classifying space Br (or K(r,l) Eilenberg-Mac Lane space). This can be defined purely homotopically.
Produkteigenschaften
- Artikelnummer: 9783764367060
- Medium: Buch
- ISBN: 978-3-7643-6706-0
- Verlag: Springer
- Erscheinungstermin: 01.04.2002
- Sprache(n): Englisch
- Auflage: 1. Auflage 2002
- Serie: Lectures in Mathematics. ETH Zürich
- Produktform: Kartoniert, Paperback
- Gewicht: 222 g
- Seiten: 104
- Format (B x H x T): 170 x 244 x 7 mm
- Ausgabetyp: Kein, Unbekannt