Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $C^*$-rigidity of dynamical systems and \'etale groupoids   This is some lecture notes I wrote for the masterclass \emph{Rigidity of
$C^*$-algebras associated to dynamics} held at the University of Copenhagen
October 16-20, 2017.
  The notes is attempt to give an introduction to how \'etale groupoids can be
used to obtain $C^*$-rigidity result for topological dynamical systems.

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The categories of this paper are: stat
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The categories of this paper are: physics
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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg
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The categories of this paper are: gr-qc
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The categories of this paper are: cs
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The categories of this paper are: econ
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The categories of this paper are: nucl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: cond-mat