Results 31 to 40 of about 62,545 (283)

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

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

Weighted estimates for multilinear Fourier multipliers

open access: yes, 2013
We prove a H\"{o}rmander type multiplier theorem for multilinear Fourier multipiers with multiple weights.
Li, Kangwei, Sun, Wenchang
core   +1 more source

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  

A Class of Unbounded Fourier Multipliers on the Unit Complex Ball

open access: yesAbstract and Applied Analysis, 2014
We introduce a class of Fourier multiplier operators Mb on n-complex unit sphere, where the symbol b∈Hs(Sω). We obtained the Sobolev boundedness of Mb. Our result implies that the operators Mb take a role of fractional differential operators on ∂𝔹.
Pengtao Li, Jianhao Lv, Tao Qian
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

Banach algebras of Fourier multipliers equivalent at infinity to nice Fourier multipliers

open access: yesBanach Journal of Mathematical Analysis, 2021
The authors continue their study of Banach algebras of Fourier multipliers published in a series of recent papers [\textit{A. Karlovich} and \textit{E. Shargorodsky}, Integral Equations Oper. Theory 93, No. 2, Paper No. 16, 24 p. (2021; Zbl 1477.47095); \textit{A. Karlovich}, Stud. Math. 254, No. 2, 149--178 (2020; Zbl 1469.43005); \textit{C.
Cláudio A. Fernandes   +2 more
openaire   +3 more sources

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

The local geometry of idempotent Schur multipliers

open access: yesForum of Mathematics, Pi
A Schur multiplier is a linear map on matrices which acts on its entries by multiplication with some function, called the symbol. We consider idempotent Schur multipliers, whose symbols are indicator functions of smooth Euclidean domains.
Javier Parcet   +2 more
doaj   +1 more source

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