How big is a tiling's return module?

Fuente: arXiv
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Autores principales: Perryman, Abigail, Sadun, Lorenzo
Formato: Preprint
Publicado: 2024
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_version_ 1866917690710425600
author Perryman, Abigail
Sadun, Lorenzo
author_facet Perryman, Abigail
Sadun, Lorenzo
contents The rank of a tiling's return module depends on the geometry of its tiles and is not a topological invariant. However, the rank of the first \v Cech cohomology $\check H^1(Ω)$ gives upper and lower bounds for the size of the return module. For all sufficiently large patches, the rank of the return module is at most the same as the rank of the cohomology. For a generic choice of tile shapes and an arbitrary reference patch, the rank of the return module is at least the rank of $\check H^1(Ω)$. Therefore, for generic tile shapes and sufficiently large patches, the rank of the return module is equal to the rank of $\check H^1(Ω)$.
format Preprint
id arxiv_https___arxiv_org_abs_2406_07501
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle How big is a tiling's return module?
Perryman, Abigail
Sadun, Lorenzo
Dynamical Systems
37B52, also 37C79, 52C22, 52C23, 55N05
The rank of a tiling's return module depends on the geometry of its tiles and is not a topological invariant. However, the rank of the first \v Cech cohomology $\check H^1(Ω)$ gives upper and lower bounds for the size of the return module. For all sufficiently large patches, the rank of the return module is at most the same as the rank of the cohomology. For a generic choice of tile shapes and an arbitrary reference patch, the rank of the return module is at least the rank of $\check H^1(Ω)$. Therefore, for generic tile shapes and sufficiently large patches, the rank of the return module is equal to the rank of $\check H^1(Ω)$.
title How big is a tiling's return module?
topic Dynamical Systems
37B52, also 37C79, 52C22, 52C23, 55N05
url https://arxiv.org/abs/2406.07501