148 citations · 677 across the 41 of their papers we have counts for
4 papers · 1 filter
Topological equivalence of tilings
Johannes Kellendonk
We introduce a notion of equivalence on tilings which is formulated in terms of their local structure. We compare it with the known concept of locally deriving one tiling from anot…
The Local Structure of Tilings and their Integer Group of Coinvariants
Johannes Kellendonk
The local structure of a tiling is described in terms of a multiplicative structure on its pattern classes. The groupoid associated to the tiling is derived from this structure and…
On -Groups for Substitution Tilings
Johannes Kellendonk
The group $C(\Om,\Z)/\E$ is determined for tilings which are invariant under a locally invertible primitive \sst\ which forces its \saum. In case the tiling may be obtained by the…
Gap Labelling for Schrödinger Operators on Quasiperiodic Tilings
Johannes Kellendonk
For a large class of tilings, including those which are obtained by the generalized dual method from regular grids, it is shown that their algebra is stably isomorphic to a crossed…