Published online by Cambridge University Press: 03 April 2018
The group of
${\mathcal{C}}^{1}$
-diffeomorphisms of any sparse Cantor subset of a manifold is countable and discrete (possibly trivial). Thompson’s groups come out of this construction when we consider central ternary Cantor subsets of an interval. Brin’s higher-dimensional generalizations
$nV$
of Thompson’s group
$V$
arise when we consider products of central ternary Cantor sets. We derive that the
${\mathcal{C}}^{2}$
-smooth mapping class group of a sparse Cantor sphere pair is a discrete countable group and produce this way versions of the braided Thompson groups.
Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.
* Views captured on Cambridge Core between 03rd April 2018 - 17th January 2021. This data will be updated every 24 hours.