Baake, Michael and Grimm, Uwe
(2007).

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DOI (Digital Object Identifier) Link:  http://doi.org/10.1524/zkri.2007.222.2.54 

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Abstract
Two Delone sets are called homometric when they share the same autocorrelation or Patterson measure. A model set Lambda within a given cut and project scheme is a Delone set that is defined through a window W in internal space. The autocorrelation measure of Lambda is a pure point measure whose coefficients can be calculated via the socalled covariogram of W. Two windows with the same covariogram thus result in homometric model sets. On the other hand, the inverse problem of determining Lambda from its diffraction image ultimately amounts to reconstructing W from its covariogram. This is also known as Matheron's covariogram problem. It is well studied in convex geometry, where certain uniqueness results have been obtained in recent years. However, for nonconvex windows, uniqueness fails in a relevant way, so that interesting applications to the homometry problem emerge. We discuss this in a simple setting and show a planar example of distinct homometric model sets.
Item Type:  Journal Article 

ISSN:  00442968 
Keywords:  homometry; model sets; covariogram 
Academic Unit/Department:  Mathematics, Computing and Technology > Mathematics and Statistics Mathematics, Computing and Technology 
Item ID:  6609 
Depositing User:  Uwe Grimm 
Date Deposited:  06 Feb 2007 
Last Modified:  25 Feb 2016 02:30 
URI:  http://oro.open.ac.uk/id/eprint/6609 
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