Frame constants of Gabor frames near the critical density

Journal de Mathématiques Pures et Appliquées - Tập 94 - Trang 170-182 - 2010
A. Borichev1, K. Gröchenig2, Yu. Lyubarskii3
1Centre de Mathématiques et Informatique, Université d'Aix-Marseille I, 39, rue Joliot Curie, 13453, Marseille Cedex 13, France
2Faculty of Mathematics, University of Vienna, Nordbergstrasse 15, A-1090 Vienna, Austria
3Department of Mathematical Sciences, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway

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