Isomorphism conjectures with proper coefficients

Let G be a group and F a nonempty family of subgroups of G, closed under conjugation and under subgroups. Also let E be a functor from small Z-linear categories to spectra, and let A be a ring with a G-action. Under mild conditions on E and A one can define an equivariant homology theory HG(-, E(A))...

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Autores principales: Cortiñas, G., Ellis, E.
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00224049_v218_n7_p1224_Cortinas
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spelling todo:paper_00224049_v218_n7_p1224_Cortinas2023-10-03T14:32:44Z Isomorphism conjectures with proper coefficients Cortiñas, G. Ellis, E. Let G be a group and F a nonempty family of subgroups of G, closed under conjugation and under subgroups. Also let E be a functor from small Z-linear categories to spectra, and let A be a ring with a G-action. Under mild conditions on E and A one can define an equivariant homology theory HG(-, E(A)) of G-simplicial sets such that H*G(G/H,E(A))=E(A⋊H). The strong isomorphism conjecture for the quadruple (G,F,E,A) asserts that if X→Y is an equivariant map such that XH→YH is an equivalence for all H∈F, thenHG(X,E(A))→HG(Y,E(A)) is an equivalence. In this paper we introduce an algebraic notion of (G,F)-properness for G-rings, modeled on the analogous notion for G-C*-algebras, and show that the strong (G,F,E,P) isomorphism conjecture for (G,F)-proper P is true in several cases of interest in the algebraic K-theory context. © 2013 Elsevier B.V. Fil:Cortiñas, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00224049_v218_n7_p1224_Cortinas
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Let G be a group and F a nonempty family of subgroups of G, closed under conjugation and under subgroups. Also let E be a functor from small Z-linear categories to spectra, and let A be a ring with a G-action. Under mild conditions on E and A one can define an equivariant homology theory HG(-, E(A)) of G-simplicial sets such that H*G(G/H,E(A))=E(A⋊H). The strong isomorphism conjecture for the quadruple (G,F,E,A) asserts that if X→Y is an equivariant map such that XH→YH is an equivalence for all H∈F, thenHG(X,E(A))→HG(Y,E(A)) is an equivalence. In this paper we introduce an algebraic notion of (G,F)-properness for G-rings, modeled on the analogous notion for G-C*-algebras, and show that the strong (G,F,E,P) isomorphism conjecture for (G,F)-proper P is true in several cases of interest in the algebraic K-theory context. © 2013 Elsevier B.V.
format JOUR
author Cortiñas, G.
Ellis, E.
spellingShingle Cortiñas, G.
Ellis, E.
Isomorphism conjectures with proper coefficients
author_facet Cortiñas, G.
Ellis, E.
author_sort Cortiñas, G.
title Isomorphism conjectures with proper coefficients
title_short Isomorphism conjectures with proper coefficients
title_full Isomorphism conjectures with proper coefficients
title_fullStr Isomorphism conjectures with proper coefficients
title_full_unstemmed Isomorphism conjectures with proper coefficients
title_sort isomorphism conjectures with proper coefficients
url http://hdl.handle.net/20.500.12110/paper_00224049_v218_n7_p1224_Cortinas
work_keys_str_mv AT cortinasg isomorphismconjectureswithpropercoefficients
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