Results 31 to 40 of about 62,963 (321)

A brief description of operators associated to the quantum harmonic oscillator on Schatten-von Neumann classes

open access: yesRevista Integración, 2018
In this note we study pseudo-multipliers associated to the harmonic oscillator (also called Hermite multipliers) belonging to Schatten classes on L2(Rn). We also investigate the spectral trace of these operators.
Duván Cardona
doaj   +1 more source

On Integral Operators with Operator Valued Kernels [PDF]

open access: yes, 2009
Here Lq-Lp boundedness of integral operator with operator-valued kernels is studied and the main result is applied to convolution operators. Using these results Besov space regularity for Fourier multiplier operator is established.Comment: 9 ...
Shahmurov, Rishad
core   +3 more sources

A convolution type characterization for Lp - multipliers for the Heisenberg group

open access: yesJournal of Function Spaces and Applications, 2007
It is well known that if m is an Lp - multiplier for the Fourier transform on ℝn ...
R. Radha, A.K. Vijayarajan
doaj   +1 more source

Spherical-Radial Multipliers on the Heisenberg Group

open access: yesInternational Journal of Analysis and Applications, 2020
Let Hn be the (2n+1)-dimensional Heisenberg group. We consider a radial Fourier multiplier which is a spherical function on Hn and show that it is a Herz-Schur multiplier.
M.E. Egwe
doaj  

Existence of Solution of Space–Time Fractional Diffusion-Wave Equation in Weighted Sobolev Space

open access: yesAdvances in Mathematical Physics, 2020
In this paper, we consider Cauchy problem of space-time fractional diffusion-wave equation. Applying Laplace transform and Fourier transform, we establish the existence of solution in terms of Mittag-Leffler function and prove its uniqueness in weighted ...
Kangqun Zhang
doaj   +1 more source

High performance and resource efficient FFT processor based on CORDIC algorithm

open access: yesEURASIP Journal on Advances in Signal Processing, 2022
Fast Fourier Transform is widely used in communication and signal processing. I propose an improved multipath delay commutator pipelining architecture based on the radix-2 time decimation algorithm.
Yupu Zhao, Hong Lv, Jun Li, Lulu Zhu
doaj   +1 more source

Low-Complexity Filter for Software-Defined Radio by Modulated Interpolated Coefficient Decimated Filter in a Hybrid Farrow

open access: yesSensors, 2022
Realising a low-complexity Farrow channelisation algorithm for multi-standard receivers in software-defined radio is a challenging task. A Farrow filter operates best at low frequencies while its performance degrades towards the Nyquist region.
Temidayo O. Otunniyi   +1 more
doaj   +1 more source

Characterizations of Hankel multipliers

open access: yes, 2008
We give characterizations of radial Fourier multipliers as acting on radial L^p-functions ...
Garrigos, Gustavo, Seeger, Andreas
core   +2 more sources

On Radial and Conical Fourier Multipliers [PDF]

open access: yesJournal of Geometric Analysis, 2010
We investigate connections between radial Fourier multipliers on $R^d$ and certain conical Fourier multipliers on $R^{d+1}$. As an application we obtain a new weak type endpoint bound for the Bochner-Riesz multipliers associated to the light cone in $R^{d+1}$, where $d\ge 4$, and results on characterizations of $L^p\to L^{p, }$ inequalities for ...
Heo, Yaryong   +2 more
openaire   +2 more sources

Reproducing Formulas for the Fourier-Like Multipliers Operators in q-Rubin Setting

open access: yesInternational Journal of Analysis and Applications, 2020
The aim of this work is to study of the q^2 -Fourier multiplier operators on R_q and we give for them Calderon’s reproducing formulas and best approximation on the q^2-analogue Sobolev type space H_q using the theory of q^2-Fourier transform and ...
Ahmed Saoudi
doaj  

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