Results 21 to 30 of about 1,096,865 (195)

Bounds and algorithms for the K-Bessel function of imaginary order [PDF]

, 2013
Using the paths of steepest descent, we prove precise bounds with numerical implied constants for the modified Bessel function of imaginary order and its first two derivatives with respect to the order.
Booker, Andrew R, Strömbergsson, Andreas, Then, Holger L, Then, Holger, Booker, Andrew R., Strombergsson, Andreas,   +5 more
core   +1 more source

On Some Inequalities of Uncertainty Principles Type in Quantum Calculus

International Journal of Mathematics and Mathematical Sciences, 2008
The aim of this paper is to generalize the 𝑞-Heisenberg uncertainty principles studied by Bettaibi et al. (2007), to state local uncertainty principles for the 𝑞-Fourier-cosine, the 𝑞-Fourier-sine, and the 𝑞-Bessel-Fourier transforms, then to provide ...
Ahmed Fitouhi, Néji Bettaibi, Rym H. Bettaieb, Wafa Binous   +3 more
doaj   +1 more source

A Sinusoidal Frequency Modulation Fourier-Bessel Transform and its Application to Micro-Doppler Feature Extraction

Leida xuebao, 2018
In this paper, a Sinusoidal Frequency Modulation Fourier-Bessel Transform (SFMFBT) is proposed for micro-Doppler (m-D) target feature extraction. Initially, the definition of SFMFBT is given, and then, some of its properties are analyzed.
He Qifang, Zhang Qun, Luo Ying, Li Kaiming   +3 more
doaj   +1 more source

A variant of Cowling–Price's and Miyachi's theorems for the Bessel–Struve transform on ℝd

Journal of Taibah University for Science, 2018
In this paper, we consider the Bessel–Struve transform on $ \mathbb {R}^{d} $ . We establish new versions of Cowling–Price's and Miyachi's theorems for the Bessel–Struve transform on $ \mathbb {R}^{d} $ .
Hatem Mejjaoli, Khalifa Trimèche
doaj   +1 more source

ON ESTIMATES FOR THE CANONICAL LINEAR FOURIER-BESSEL TRANSFORM IN THE SPACE Lp (R+; x2+1dx) (1 < p 2) [PDF]

, 2023
In this paper, we establish the analog of Abilov's theorems and the analog of Titchmarsh's theorems for the canonical linear Fourier-Bessel transform in a class of functions in the space $L^{p}(\mathbb{R}^{+},x^{2\alpha+1}dx)$ where $1\frac{-1}{2}$.
Sadiq, Zakaria, Abdellatif, Akhlidj
core   +1 more source

Radar matched filtering using the fractional fourier transform [PDF]

, 2010
-A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine, Elgamel, Sherif A.E.H., Soraghan, J.J.   +2 more
core   +3 more sources

On the Diamond Bessel Heat Kernel

Journal of Applied Mathematics, 2011
We study the heat equation in n dimensional by Diamond Bessel operator. We find the solution by method of convolution and Fourier transform in distribution theory and also obtain an interesting kernel related to the spectrum and the kernel which is ...
Wanchak Satsanit
doaj   +1 more source

Paley and Hardy's inequalities for the Fourier-Dunkl expansions [PDF]

Arab Journal of Mathematical Sciences
Purpose – Paley's and Hardy's inequality are proved on a Hardy-type space for the Fourier–Dunkl expansions based on a complete orthonormal system of Dunkl kernels generalizing the classical exponential system defining the classical Fourier series. Design/
Anis Elgarna
doaj   +1 more source

Insights into the Degradation Mechanism of Aqueous LiMn2O4–Cathode Interfaces by Computational Vibrational Spectroscopy

Angewandte Chemie, EarlyView.
LiMn2O4${\rm LiMn}_2{\rm O}_4$ is of high interest for sustainable energy storage and conversion. Its mixed‐valence Mn3+${\rm Mn}^{3+}$/Mn4+${\text{Mn}}^{4+}$ structure drives site‐specific behavior at aqueous interfaces, featuring proton‐generating Mn4+${\text{Mn}}^{4+}$ centers and electron‐rich Mn3+${\rm Mn}^{3+}$ sites that render the surrounding ...
K. Nikolas Lausch, Redouan El Haouari, Philipp Schienbein, Jörg Behler   +3 more
wiley   +2 more sources

Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model

Physics Letters B, 2022
We evaluate the unintegrated gluon distribution of the proton starting from a parametrization of the color dipole cross section including Dokshitzer–Gribov–Lipatov–Altarelli–Parisi (DGLAP) evolution and saturation effects.
Agnieszka Łuszczak, Marta Łuszczak, Wolfgang Schäfer   +2 more
doaj   +1 more source