Existence of quasicrystals and universal stable sampling and interpolation in LCA groups
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- by Elona Agora, Jorge Antezana, Carlos Cabrelli and Basarab Matei PDF
- Trans. Amer. Math. Soc. 372 (2019), 4647-4674 Request permission
Abstract:
We characterize all the locally compact abelian (LCA) groups that contain quasicrystals (a class of model sets). Moreover, we describe all possible quasicrystals in the group constructing an appropriate lattice associated with the cut and project scheme that produces it. On the other hand, if an LCA group $G$ admits a simple quasicrystal, we prove that recent results of Meyer and Matei for the case of the Euclidean space $\mathbb {R}^n$ can be extended to $G$. More precisely, we prove that simple quasicrystals are universal sets of stable sampling and universal sets of stable interpolation in generalized Paley-Wiener spaces.References
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Additional Information
- Elona Agora
- Affiliation: Instituto Argentino de Matemática “Alberto P. Calderón” (IAM-CONICET), 1083 Buenos Aires, Argentina
- MR Author ID: 983593
- Email: elona.agora@gmail.com
- Jorge Antezana
- Affiliation: Departamento de Matemática, Universidad Nacional de La Plata and Instituto Argentino de Matemática “Alberto P. Calderón” (IAM-CONICET), Buenos Aires, Argentina
- Email: antezana@mate.unlp.edu.ar
- Carlos Cabrelli
- Affiliation: Departamento de Matemática, Universidad de Buenos Aires and Instituto de Matemática “Luis Santaló” (IMAS-CONICET-UBA), Buenos Aires, Argentina
- MR Author ID: 308374
- ORCID: 0000-0002-6473-2636
- Email: cabrelli@dm.uba.ar
- Basarab Matei
- Affiliation: Institut Galilée and Université Paris 13, Paris, France
- MR Author ID: 722127
- Email: matei@lipn.univ-paris13.fr
- Received by editor(s): September 17, 2017
- Received by editor(s) in revised form: September 3, 2018
- Published electronically: May 20, 2019
- Additional Notes: The first author was supported in part by Grants MTM2013-40985-P, MTM2016-75196-P, PIP 112201501003553CO, UBACyT 20020130100422BA
The second author was supported in part by Grants CONICET-PIP 152, UNLP-11X585, MTM2016-75196-P
The third author was supported in part by Grants PICT 2014-1480 (ANPCyT), CONICET PIP 11220110101018, UBACyT 20020130100403BA, UBACyT 20020130100422BA - © Copyright 2019 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 372 (2019), 4647-4674
- MSC (2010): Primary 42C15, 94A20; Secondary 42C30, 43A25
- DOI: https://doi.org/10.1090/tran/7723
- MathSciNet review: 4009438