English

Dynamical Complexity and $K$-Theory of $L^p$ Operator Crossed Products

K-Theory and Homology 2019-09-24 v4 Dynamical Systems Operator Algebras

Abstract

We apply quantitative (or controlled) KK-theory to prove that a certain LpL^p assembly map is an isomorphism for p[1,)p\in[1,\infty) when an action of a countable discrete group Γ\Gamma on a compact Hausdorff space XX has finite dynamical complexity. When p=2p=2, this is a model for the Baum-Connes assembly map for Γ\Gamma with coefficients in C(X)C(X), and was shown to be an isomorphism by Guentner, Willett, and Yu.

Keywords

Cite

@article{arxiv.1611.09000,
  title  = {Dynamical Complexity and $K$-Theory of $L^p$ Operator Crossed Products},
  author = {Yeong Chyuan Chung},
  journal= {arXiv preprint arXiv:1611.09000},
  year   = {2019}
}

Comments

32 pages. Added a new section at the end with a brief discussion of the domain of the assembly map and *-algebraic versions of the algebras considered. Also made corrections and improvements to exposition based on the referee's comments