Integer Groups of Coinvariants Associated to Octagonal Tilings
نویسنده
چکیده
The integer groups of coinvariants associated to undecorated and decorated octagonal tilings are computed.
منابع مشابه
Integer Group of Coinvariants
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 its integer group of coinvariants is defined. This group furnishes part of the K0-group of the groupoid C ∗-algebra for tilings which reduce to decorations of Z Z . The group itself as well as the image of its state ...
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