| HAL : hal-00704805, version 1 |
| arXiv : 1206.1195 |
| Fiche détaillée | Récupérer au format |
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| Uncertainty principles for integral operators |
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| Saifallah Ghobber 1, 2Philippe Jaming 3 |
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| (06/2012) |
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| The aim of this paper is to prove new uncertainty principles for an integral operator $\tt$ with a bounded kernel for which there is a Plancherel theorem. The first of these results is an extension of Faris's local uncertainty principle which states that if a nonzero function $f\in L^2(\R^d,\mu)$ is highly localized near a single point then $\tt (f)$ cannot be concentrated in a set of finite measure. The second result extends the Benedicks-Amrein-Berthier uncertainty principle and states that a nonzero function $f\in L^2(\R^d,\mu)$ and its integral transform $\tt (f)$ cannot both have support of finite measure. From these two results we deduce a global uncertainty principle of Heisenberg type for the transformation $\tt$. We apply our results to obtain a new uncertainty principles for the Dunkl and Clifford Fourier transforms. |
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| 1 : | Mathématiques - Analyse, Probabilités, Modélisation - Orléans (MAPMO) |
| Université d'Orléans – CNRS : UMR7349 | |
| 2 : | Analyse harmonique et fonctions spéciales |
| Faculté des Sciences de Tunis | |
| 3 : | Institut de Mathématiques de Bordeaux (IMB) |
| CNRS : UMR5251 – Université Sciences et Technologies - Bordeaux I – Université Victor Segalen - Bordeaux II | |
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| Domaine | : | Mathématiques/Analyse classique |
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| Uncertainty principles – annihilating pairs – Dunkl transform – Fourier-Clifford transform – integral operators |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00704805, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00704805 | |
| oai:hal.archives-ouvertes.fr:hal-00704805 | |
| Contributeur : Philippe Jaming | |
| Soumis le : Mercredi 6 Juin 2012, 12:14:56 | |
| Dernière modification le : Mercredi 6 Juin 2012, 14:08:43 | |