Korean J. Math. Vol. 28 No. 4 (2020) pp.649-671
DOI: https://doi.org/10.11568/kjm.2020.28.4.649

The Cherednik and the Gaussian Cherednik Windowed transforms on $\mathbb{R}^d$ in the W-invariant case

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Amina Hassini
Khalifa Trimeche

Abstract

In this paper we give the harmonic analysis associated with the Cherednik operators, next we define and study the Cherednik wavelets and the Cherednik windowed transforms on $\mathbb{R}^d$, in the W-invariant case, and we prove for these transforms Plancherel and inversion formulas. As application we give these results for the Gaussian Cherednik wavelets and the Gaussian Cherednik windowed transform on $\mathbb{R}^d$ in the W-invariant case.


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References

[1] I.Cherednik, Inverse Harish-Chandra transform and difference operators, Inter- nat. Math. Res. Notices 15 (1997), 733–750. Google Scholar

[2] L.Gallardo and K.Trim`eche, Positivity of the Jacobi-Cherednik intertwining operator and its dual, Adv. Pure Appl. Math. 1 (2012), 163–194. Google Scholar

[3] G.J.Heckman and E.M.Opdam, Root systems and hypergeometric functions I, Compositio Math. 64 (1987), 329–352. Google Scholar

[4] T.H.Koornwinder, A new proof of the Paley-Wiener type theorem for the Jacobi transform, Arkiv For Math. 13 (1) (1975), 145–159. Google Scholar

[5] T.H.Koornwinder, The continuous wavelet transform. Series in Approximations and Decompositions. Vol. 1. Wavelets: An elementary treatment of theory and applications. Edited by T.H.Koornwinder, World Scientific, (1993), 27–48. Google Scholar

[6] E.M.Opdam, Harmonic analysis for certain representations of graded Hecke al- algebras, Acta Math. 175 (1995), 75–121. Google Scholar

[7] B.Schapira, Etude analytique et probabiliste de Laplacians associ es `a des syst`emes de racines: Laplacian hyperg eom etrique de Heckman-Opdam et Lapla- cian combinatoire sur les immeubles affines, Ph. D. Thesis, University of Orl eans, 2006. Google Scholar

[8] B.Schapira, Contribution to the hypergeometric function theory of Heckman and Opdam; sharp estimates, Schwartz spaces, heat kernel, Geom. Funct. Anal. 18 (2008), 222–250. Google Scholar

[9] K.Trim`eche, Generalized Wavelets and Hypergroups, Gordon and Breach Science Publishers, 1997. Google Scholar

[10] K.Trim`eche, The trigonometric Dunkl intertwining operator and its dual associated with the Cherednik operator and the Heckman Opdam theory, Adv. Pure Appl. Math. 1 (2010), 293–323. Google Scholar

[11] K.Trim`eche, Harmonic analysis associated with the Cherednik operators and the Heckman-Opdam theory, Adv. Pure Appl. Math. 2 (2011), 23–46. Google Scholar

[12] K.Trim`eche, The harmonic analysis associated to the Heckman-Opdam theory and its applications to the root system of type BCd, Korean J. Math. 27 (2019) (1), 221–267. Google Scholar