Papers by Philippe Jaming
Applied and Computational Harmonic Analysis, 2014
Comptes Rendus De L Academie Des Sciences Serie 1 Mathematique, 1999
Nous nous intéressons icià deux problèmes concernant la distribution de Wigner. Dans un premier t... more Nous nous intéressons icià deux problèmes concernant la distribution de Wigner. Dans un premier temps, nous démontrons ici que, si le support de la distribution de Wigner d'une fonction est de mesure finie, alors cette fonction est nulle, répondant ainsià une question de Folland et Sitaram [FS]. Nous nous inspirons ensuite des méthodes développées dans [Jam4] pour résoudre le problème de reconstruction de phase pour la transformée de Wigner de fonctionsà support compact.
Comptes Rendus De L Academie Des Sciences Serie 1 Mathematique, 1999
Nous nous intéressons icià deux problèmes concernant la distribution de Wigner. Dans un premier t... more Nous nous intéressons icià deux problèmes concernant la distribution de Wigner. Dans un premier temps, nous démontrons ici que, si le support de la distribution de Wigner d'une fonction est de mesure finie, alors cette fonction est nulle, répondant ainsià une question de Folland et Sitaram [FS]. Nous nous inspirons ensuite des méthodes développées dans [Jam4] pour résoudre le problème de reconstruction de phase pour la transformée de Wigner de fonctionsà support compact.
Http Dx Doi Org 10 1080 10652469 2012 708868, May 29, 2013
The aim of this paper is to establish an analogue of Logvinenko-Sereda's theorem for the Fourier-... more The aim of this paper is to establish an analogue of Logvinenko-Sereda's theorem for the Fourier-Bessel transform (or Hankel transform) Fα of order α > −1/2. Roughly speaking, if we denote by P Wα(b) the Paley-Wiener space of L 2 -functions with Fourier-Bessel transform supported in [0, b], then we show that the restriction map f → f |Ω is essentially invertible on P Wα(b) if and only if Ω is sufficiently dense. Moreover, we give an estimate of the norm of the inverse map.
Http Dx Doi Org 10 1080 10652469 2012 708868, May 29, 2013
The aim of this paper is to establish an analogue of Logvinenko-Sereda's theorem for the Fourier-... more The aim of this paper is to establish an analogue of Logvinenko-Sereda's theorem for the Fourier-Bessel transform (or Hankel transform) Fα of order α > −1/2. Roughly speaking, if we denote by P Wα(b) the Paley-Wiener space of L 2 -functions with Fourier-Bessel transform supported in [0, b], then we show that the restriction map f → f |Ω is essentially invertible on P Wα(b) if and only if Ω is sufficiently dense. Moreover, we give an estimate of the norm of the inverse map.
Bollettino della Unione Matematica Italiana B
CERN experiment WA89 has studied charmed particles produced by a Σ − beam at 340GeV/c on nuclear ... more CERN experiment WA89 has studied charmed particles produced by a Σ − beam at 340GeV/c on nuclear targets. Production of particles which have light quarks in common with the beam is compared to production of those which do not. Considerable production asymmetries between are observed. The results are compared with pion beam data and with theoretical calculations.
Bollettino della Unione Matematica Italiana B
CERN experiment WA89 has studied charmed particles produced by a Σ − beam at 340GeV/c on nuclear ... more CERN experiment WA89 has studied charmed particles produced by a Σ − beam at 340GeV/c on nuclear targets. Production of particles which have light quarks in common with the beam is compared to production of those which do not. Considerable production asymmetries between are observed. The results are compared with pion beam data and with theoretical calculations.
In this paper we obtain L p versions of the classical theorems of induced representations, namely... more In this paper we obtain L p versions of the classical theorems of induced representations, namely, the inducing in stages theorem, the Kronecker product theorem, the Frobenius Reciprocity theorem and the subgroup theorem. In doing so we adopt the tensor product approach of Rieffel to inducing.
In this paper we obtain L p versions of the classical theorems of induced representations, namely... more In this paper we obtain L p versions of the classical theorems of induced representations, namely, the inducing in stages theorem, the Kronecker product theorem, the Frobenius Reciprocity theorem and the subgroup theorem. In doing so we adopt the tensor product approach of Rieffel to inducing.
Comptes Rendus de l Académie des Sciences - Series I - Mathematics
ABSTRACT
Comptes Rendus de l Académie des Sciences - Series I - Mathematics
ABSTRACT
Colloquium Mathematicum
In this article we study harmonic functions for the Laplace-Beltrami operator on the real hyperbo... more In this article we study harmonic functions for the Laplace-Beltrami operator on the real hyperbolic space B n . We obtain necessary and sufficient conditions for this functions and their normal derivatives to have a boundary distribution. In doing so, we put forward different behaviors of hyperbolic harmonic functions according to the parity of the dimension of the hyperbolic ball B n . We then study Hardy spaces H p (B n ), 0 < p < ∞, whose elements appear as the hyperbolic harmonic extensions of distributions belonging to the Hardy spaces of the sphere H p (S n−1 ). In particular, we obtain an atomic decomposition of this spaces.
Colloquium Mathematicum
In this article we study harmonic functions for the Laplace-Beltrami operator on the real hyperbo... more In this article we study harmonic functions for the Laplace-Beltrami operator on the real hyperbolic space B n . We obtain necessary and sufficient conditions for this functions and their normal derivatives to have a boundary distribution. In doing so, we put forward different behaviors of hyperbolic harmonic functions according to the parity of the dimension of the hyperbolic ball B n . We then study Hardy spaces H p (B n ), 0 < p < ∞, whose elements appear as the hyperbolic harmonic extensions of distributions belonging to the Hardy spaces of the sphere H p (S n−1 ). In particular, we obtain an atomic decomposition of this spaces.
Comptes Rendus de l Académie des Sciences - Series I - Mathematics
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Papers by Philippe Jaming