Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Lakhdar T"'
Publikováno v:
Cubo, Vol 13, Iss 3, Pp 91-115 (2011)
A Beurling-Hormander theorem's is proved for the Fourier transform connected with the Riemann-Liouville operator. Nextly, Gelfand-Shilov and Cowling-Price type theorems are established.Se demuestra el teorema de Beurling-Hormander por la transformada
Externí odkaz:
https://doaj.org/article/6c319edb864b447f95e1753953cc843d
Autor:
Aymen Hammami, Lakhdar T. Rachdi
Publikováno v:
Integral Transforms and Special Functions. 31:702-719
We prove a Heisenberg type uncertainty principle for the Gabor spherical mean transform, and we study its generalization. Next, we extend local uncertainty principle for sets of finite measure to t...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1289ec97c82fca5b050c66a59cfe7a8
https://doi.org/10.1080/10652469.2020.1734928
https://doi.org/10.1080/10652469.2020.1734928
Autor:
Lakhdar T. Rachdi, Besma Amri
Publikováno v:
Journal of Pseudo-Differential Operators and Applications. 12
We consider the Bessel–Kingman hypergroup $$\big ([0,+\infty [,*\big )$$ and we denote by $$d\mu _\alpha ,\ \alpha \geqslant -\frac{1}{2},\ $$ the measure defined on $$[0,+\infty [$$ by $$d\mu _\alpha (x)=\frac{x^{2+1}}{2^\alpha \ \Gamma (\alpha +1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29098baf6acb05a19a2de58584cd2125
https://doi.org/10.1007/s11868-021-00415-w
https://doi.org/10.1007/s11868-021-00415-w
Autor:
Samia Sghaier, Lakhdar T. Rachdi
Publikováno v:
Integral Transforms and Special Functions. 30:564-580
We define the windowed Fourier transform, called also the Gabor transform, associated with singular partial differential operators. We establish Plancherel theorem, orthogonality property a...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16e341d75c0a68d227f386787915017c
https://doi.org/10.1080/10652469.2019.1593408
https://doi.org/10.1080/10652469.2019.1593408
Autor:
Youcef Djeldjeli, Lakhdar Taouaf, Sultan Alqahtani, Allel Mokaddem, Badr M. Alshammari, Younes Menni, Lioua Kolsi
Publikováno v:
Case Studies in Thermal Engineering, Vol 61, Iss , Pp 104924- (2024)
_Predicting solar energy is essential for efficient power system planning and the successful integration of renewable energy sources. This study aims to develop a framework for evaluating various machine learning models and feature selection strategi
Externí odkaz:
https://doaj.org/article/e4ba6a943a22464e8dece999c15aff41
Akademický článek
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Autor:
Lakhdar T. Rachdi, Samia Sghaier
Publikováno v:
Open Journal of Mathematical Analysis. 2:53-77
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9feeac5fed1344af5ea134d0bf8cdc4c
https://doi.org/10.30538/psrp-oma2018.0018
https://doi.org/10.30538/psrp-oma2018.0018
Publikováno v:
ANNALI DELL'UNIVERSITA' DI FERRARA. 65:139-170
We define and study the windowed Fourier transform, called also the Gabor transform, associated with singular partial differential operators defined on the half plane $$]0,+\infty [\times \mathbb {R}$$ . We prove a Plancherel theorem and an inversion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ce13748e61bc57d5ad23f84a588e3ac
https://doi.org/10.1007/s11565-018-0311-9
https://doi.org/10.1007/s11565-018-0311-9
Akademický článek
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Autor:
Hajer Herch, Lakhdar T. Rachdi
Publikováno v:
Ricerche di Matematica. 66:553-578
In this paper we define and study the continuous wavelet transforms associated with the Riemann–Liouville operator, we give nice harmonic analysis results. Next we establish an analogue of Heisenberg’s inequality related to the wavelet transform.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c67228317ac2dd2f3b4ecc992b1020cd
https://doi.org/10.1007/s11587-017-0320-5
https://doi.org/10.1007/s11587-017-0320-5