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OverviewPattern-equivariant cohomology theory was developed by Ian Putnam and Johannes Kellendonk in 2003, for tilings whose tiles appear in fixed orientations. In this dissertation, we generalize this theory in two ways: first, we define this cohomology to apply to tiling spaces, rather than individual tilings. Second, we allow tilings with tiles appearing in multiple orientations - possibly infinitely many. Along the way, we prove an approximation theorem, which has use beyond pattern-equivariant cohomology. This theorem states that a function which is a topological conjugacy can be approximated arbitrarily closely by a function which preserves the local structure of a tiling space. The approximation theorem is limited to translationally finite tilings, and we conjecture that it is not true in the infinite case. Full Product DetailsAuthor: Betseygail RandPublisher: VDM Verlag Dr. Muller Aktiengesellschaft & Co. KG Imprint: VDM Verlag Dr. Muller Aktiengesellschaft & Co. KG Dimensions: Width: 15.20cm , Height: 0.40cm , Length: 22.90cm Weight: 0.114kg ISBN: 9783639175011ISBN 10: 3639175018 Pages: 68 Publication Date: 03 July 2009 Audience: General/trade , General Format: Paperback Publisher's Status: Active Availability: In Print This item will be ordered in for you from one of our suppliers. Upon receipt, we will promptly dispatch it out to you. For in store availability, please contact us. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |