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K-theory of group Banach algebras and Banach property RD

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arxiv 1708.01982 v2 pith:CXOOO5AA submitted 2017-08-07 math.FA math.GRmath.KTmath.OA

classification math.FAmath.GRmath.KTmath.OA
keywords banachk-theoryalgebrasgroupgroupspropertyclasscompact
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abstract

We investigate Banach algebras of convolution operators on the $L^p$ spaces of a locally compact group, and their K-theory. We show that for a discrete group, the corresponding K-theory groups depend continuously on $p$ in an inductive sense. Via a Banach version of property RD, we show that for a large class of groups, the K-theory groups of the Banach algebras are independent of $p$.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Gevrey Regularity and Compact Quantum Metric Spaces for $L^p$-Group Algebras

    math.FA 2026-07 accept novelty 6.5 of 10

    Groups with the new (GRD)β,p property yield compact quantum metric spaces on their reduced Lp-algebras via Gevrey seminorms from Lp-spectral triples, including the Grigorchuk group.

  2. Spectral Invariance and Gevrey Regularity for Groups with strongly subexponential growth

    math.OA 2026-07 accept novelty 6.5 of 10

    Gevrey-Beurling operator algebras inside unitized q-pseudofunction algebras are inverse-closed for unimodular groups of strong subexponential growth, yielding spectral invariance and K-theory isomorphisms.

  3. On some $p$-approximation properties of exact discrete groups and $\ell^p$ uniform Roe algebras

    math.FA 2026-06 unverdicted novelty 6.0 of 10

    Proves property A implies p-nuclearity of ℓ^p uniform Roe algebras, introduces p-ITAP for groups, and characterizes exact discrete groups via these algebras with p-operator space coefficients.

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