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 Author：Radouan Daher , Mohamed El Hamma Data Source：[J].Comptes rendus - Mathématique(IF 0.477), 2014, Vol.352 (3), pp.235-240Elsevier Abstract：Abstract(#br)We obtain new inequalities for the Fourier transform in the space L 2 ( R n ) , using a generalized spherical mean operator for proving two estimates in certain classes of functions characterized by a generalized continuity modulus.
 Author：Azzedine Achak , Radouan Daher , Hind Lahlali Data Source：[J].Comptes rendus - Mathématique(IF 0.477), 2016, Vol.354 (1), pp.81-85Elsevier Abstract：Abstract(#br)The Bessel–Struve transform satisfies some uncertainty principles in a similar way to the Euclidean Fourier transform. Beurling's theorem is obtained for the Bessel–Struve transform F B , S α .
 Author：Ahmed Abouelaz , Radouan Daher Data Source：[J].Indian Journal of Pure and Applied Mathematics(IF 0.274), 2015, Vol.46 (1), pp.25-40Springer Abstract：Abstract(#br)In this paper, we construct an holomorphic extension of certain functions on ℤ n . We deduce a discrete Gutzmer’s formula for the discrete Fourier transform (see Theorem 4.4). In addition, we prove the Hardy-Littlewood inequality for the classical Rad...
 Author：Radouan Daher , Sidi Lafdal Hamad Data Source：[J].Integral Transforms and Special Functions(IF 0.73), 2008, Vol.19 (3), pp.165-169Taylor & Francis Abstract：In this paper, we give an Lp-Lq-version of Morgan's theorem for the Jacobi-Dunkl transform FJD on . More precisely, we prove that for all 1≤p, q≤+∞, such that 1/p+1/q=1, α>2, β=α/(α-1), a>0, and b>0, then for all measurable functions on , the conditions [image om...
 Author：Radouan Daher , Mohamed El Hamma Data Source：[J].Proceedings of the Japan Academy, Series A, Mathematical Sciences(IF 0.407), 2015, Vol.91 (6), pp.85-88Project Euclid Abstract：In this paper, we prove an analog of Younis’s theorem 5.2 in~[4] for the generalized Fourier-Bessel transform on the Half line for functions satisfying the $(\beta, \gamma)$-generalized Bessel Lipschitz condition in the space $\mathrm{L}^{2}_{\alpha,n}$.
 Author：Radouan Daher , Mustapha Boujeddaine , Mohamed El Hamma Data Source：[J].Proceedings of the Japan Academy, Series A, Mathematical Sciences(IF 0.407), 2014, Vol.90 (9), pp.135-137Project Euclid Abstract：In this paper, we obtain an analog of Younis’s Theorem 5.2 in~[7] for the Dunkl transform on the real line for functions satisfying the $(\beta, \gamma)$-Dunkl Lipschitz condition in the space $\mathrm{L}^{p}(\mathbf{R}, |x|^{2\alpha+1}dx)$, where $\alpha\geq -\frac{1}{2}$.
 Author：Mohamed El Hamma , Radouan Daher Data Source：[J].International Journal of Analysis and Applications, 2014, Vol.6 (1)Etamaths Publishing Abstract：In this paper, we study two estimates useful in applications are proved for the Dunkl transform in a Hilbert space L2,α(R) = L2(R,|x|2α+1dx), α >−1/2 as applied to some classes of functions characterized by a generalized modulus of continuity.
 Author：Ahmed Abouelaz , Radouan Daher , El Mehdi Loualid Data Source：[J].International Journal of Analysis and Applications, 2016, Vol.10 (1), pp.17-23Etamaths Publishing Abstract：In this article, we give a new harmonic analysis associated with the generalized q-Bessel operator. We introduce the generalized $q$-Bessel transform, the generalized q-Bessel translation and the generalized $q$-Bessel convolution product.
 Author：Ahmed Abouelaz , Radouan Daher , El Mehdi Loualid Data Source：[J].International Journal of Analysis and Applications, 2016, Vol.10 (1), pp.17-23Etamaths Publishing Abstract：In this article, we give a new harmonic analysis associated with the generalized q-Bessel operator. We introduce the generalized $q$-Bessel transform, the generalized q-Bessel translation and the generalized $q$-Bessel convolution product.
 Author：Radouan Daher , Takeshi Kawazoe Data Source：[J].Proceedings of the Japan Academy, Series A, Mathematical Sciences(IF 0.407), 2007, Vol.83 (9-10), pp.167-169Project Euclid Abstract：As an analogue of the classical uncertainty inequality on the Euclidean space, we shall obtain a generalization on the Sturm-Liouville hypergroups $(\mathbf{R}_{+},*(A))$. Especially, we shall obtain a condition on $A$ under which the discrete part of the Plancherel formula vanis...

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