Poincaré duality and Langlands duality for extended affine Weyl groups
Poincaré duality and Langlands duality for extended affine Weyl groups
In this paper we construct an equivariant Poincaré duality between dual tori equipped with finite group actions. We use this to demonstrate that Langlands duality induces a rational isomorphism between the group C*-algebras of extended affine Weyl groups at the level of K-theory.
K-theory, extended affine Wayl groups, Langlands duality, Poincaré duality, Baum-Connes conjecture
491-522
Niblo, Graham A.
43fe9561-c483-4cdf-bee5-0de388b78944
Plymen, Roger
76de3dd0-ddcb-4a34-98e1-257dddb731f5
Wright, Nicholas
f4685b8d-7496-47dc-95f0-aba3f70fbccd
16 July 2018
Niblo, Graham A.
43fe9561-c483-4cdf-bee5-0de388b78944
Plymen, Roger
76de3dd0-ddcb-4a34-98e1-257dddb731f5
Wright, Nicholas
f4685b8d-7496-47dc-95f0-aba3f70fbccd
Niblo, Graham A., Plymen, Roger and Wright, Nicholas
(2018)
Poincaré duality and Langlands duality for extended affine Weyl groups.
Annals of K-Theory, 3 (3), .
(doi:10.2140/akt.2018.3.491).
Abstract
In this paper we construct an equivariant Poincaré duality between dual tori equipped with finite group actions. We use this to demonstrate that Langlands duality induces a rational isomorphism between the group C*-algebras of extended affine Weyl groups at the level of K-theory.
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Accepted/In Press date: 27 November 2017
e-pub ahead of print date: 16 July 2018
Published date: 16 July 2018
Keywords:
K-theory, extended affine Wayl groups, Langlands duality, Poincaré duality, Baum-Connes conjecture
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Local EPrints ID: 415962
URI: http://eprints.soton.ac.uk/id/eprint/415962
PURE UUID: fcec58fa-8bfc-4e2d-b762-3e22ec09d4ba
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Date deposited: 29 Nov 2017 17:30
Last modified: 16 Mar 2024 05:58
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