Dunkl Hyperbolic Equations

We introduce and study the Dunkl symmetric systems. We prove the well-posedness results for the Cauchy problem for these systems. Eventually we describe the finite speed of it. Next the semi-linear Dunkl-wave equations are also studied.Comment: This is a contribution to the Special Issue on Dunkl Operators and Related Topics, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA

Dunkl-Schrödinger Equations with and without Quadratic Potentials

2000 Mathematics Subject Classification: Primary 42A38. Secondary 42B10.The purpose of this paper is to study the dispersive properties of the solutions of the Dunkl-Schrödinger equation and their perturbations with potential. Furthermore, we consider a few applications of these results to the corresponding nonlinear Cauchy problems

An Analogue of Beurling-Hörmander’s Theorem for the Dunkl-Bessel Transform

Mathematics Subject Classification: Primary 35R10, Secondary 44A15We establish an analogue of Beurling-Hörmander’s theorem for the Dunkl-Bessel transform FD,B on R(d+1,+). We deduce an analogue of Gelfand-Shilov, Hardy, Cowling-Price and Morgan theorems on R(d+1,+) by using the heat kernel associated to the Dunkl-Bessel-Laplace operator

Spectrum of Functions for the Dunkl Transform on R^d

Mathematics Subject Classification: 42B10In this paper, we establish real Paley-Wiener theorems for the Dunkl transform on R^d. More precisely, we characterize the functions in the Schwartz space S(R^d) and in L^2k(R^d) whose Dunkl transform has bounded, unbounded, convex and nonconvex support

Qualitative and quantitative uncertainty Principles for the generalized Fourier transform associated with the Riemann-Liouville operator

The aim of this paper is to establish anextension  of qualitative and quantitativeuncertainty principles  forthe Fourier transform connected with the Riemann-Liouville operator

GABOR TRANSFORM IN QUANTUM CALCULUS AND APPLICATIONS

Abstract In this work, using the q-Jackson integral and some elements of the qharmonic analysis associated with zero order q-Bessel operator, for a fixed q ∈]0, 1[, we study the q analogue of the continuous Gabor transform associated with the q-Bessel operator of order zero. We give some q-harmonic analysis properties (a Plancherel formula, an L 2 q (R q,+ , xd q x) inversion formula, etc), and a weak uncertainty principle for it. Then, we show that the portion of the q-Bessel Gabor transform lying outside some set of finite measure cannot be arbitrarily too small. Finally, using the kernel reproducing theory, given by Saitoh [13], we give the q analogue of the practical real inversion formula for q-Bessel Gabor transform. Mathematics Subject Classification: 33D15, 42C15 (main), 44A15, 33

On generalized Hardy spaces associated with singular partial differential operators

We define and study the Hardy spaces associated with singular partial differential operators. Also, a characterization by mean of atomic decomposition is investigated