246 citations
- Austrian Academy of SciencesAT76 papers
- University of ViennaAT26 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- UCLouvainBE4 papers
- Laboratoire des Sciences du Numérique de NantesFR3 papers
- Nantes UniversitéFR3 papers
- Princeton UniversityUS3 papers
- Technical University of DenmarkDK3 papers
- TU WienAT3 papers
- University of MaraghehIR3 papers
- University of Novi SadRS3 papers
- AIT Austrian Institute of Technology GmbHAT2 papers
4 papers · 1 filter
Measures of localization and quantitative Nyquist densities
Luís Daniel Abreu, João M. Pereira
We obtain a refinement of the degrees of freedom estimate of Landau and Pollak. More precisely, we estimate, in terms of , the increase in the degrees of freedom resulting upon…
Time-Frequency Localization Operators and a Berezin Transform
Dominik Bayer, Karlheinz Gröchenig
Time-frequency localization operators are a quantization procedure that maps symbols on to operators and depends on two window functions. We study the range of this quanti…
On R-duals and the duality principle in Gabor analysis
Diana T. Stoeva, Ole Christensen
The concept of R-duals of a frame was introduced by Casazza, Kutyniok and Lammers in 2004, with the motivation to obtain a general version of the duality principle in Gabor analysi…
On the numerical stability of the least-squares method for the planar scattering by obstacles
Gilles Chardon
The scattering of waves by obstacles in a 2D setting is considered, in particular the computation of the scattered field via the collocation or the least-squares methods. In the ca…