Results 31 to 40 of about 39,311 (153)

Vibration Analysis of Piezoelectric Composite Plate Resting on Nonlinear Elastic Foundations Using Sinc and Discrete Singular Convolution Differential Quadrature Techniques

open access: yes, 2020
In this work, free vibration of the piezoelectric composite plate resting on nonlinear elastic foundations is examined. The three-dimensionality of elasticity theory and piezoelectricity is used to derive the governing equation of motion. By implementing
O. Ragb   +3 more
semanticscholar   +1 more source

A Robust and Versatile Numerical Framework for Modeling Complex Fractional Phenomena: Applications to Riccati and Lorenz Systems

open access: yesFractal and Fractional
The fractional differential quadrature method (FDQM) with generalized Caputo derivatives is used in this paper to show a new numerical way to solve fractional Riccati equations and fractional Lorenz systems.
Waleed Mohammed Abdelfattah   +3 more
doaj   +1 more source

On the Regularized Fermionic Projector of the Vacuum

open access: yes, 2008
We construct families of fermionic projectors with spherically symmetric regularization, which satisfy the condition of a distributional ${\mathcal{M}} P$-product.
Connes A.   +3 more
core   +1 more source

Quadrature Solution for Fractional Benjamin–Bona–Mahony–Burger Equations

open access: yesFractal and Fractional
In this work, we present various novelty methods by employing the fractional differential quadrature technique to solve the time and space fractional nonlinear Benjamin–Bona–Mahony equation and the Benjamin–Bona–Mahony–Burger equation.
Waleed Mohammed Abdelfattah   +4 more
doaj   +1 more source

Analysis of Periodic Steady-States of Non-Linear Circuits Using the Discrete Singular Convolution Method

open access: yesIEEE Transactions on Circuits and Systems - II - Express Briefs, 2019
In this brief, an effective method is introduced to obtain the steady-state response of non-linear circuits. It involves the application of the discrete singular convolution method in the time domain.
A. Moskovko, O. Vityaz, G. Vandenbosch
semanticscholar   +1 more source

Hankel and Toeplitz operators: continuous and discrete representations

open access: yes, 2016
We find a relation guaranteeing that Hankel operators realized in the space of sequences $\ell^2 ({\Bbb Z}_{+}) $ and in the space of functions $L^2 ({\Bbb R}_{+}) $ are unitarily equivalent.
Yafaev, D. R.
core   +4 more sources

Numerical solution of a parabolic equation with a weakly singular positive-type memory term

open access: yesElectronic Journal of Differential Equations, 1997
We find a numerical solution of an initial and boundary value problem. This problem is a parabolic integro-differential equation whose integral is the convolution product of a positive-definite weakly singular kernel with the time derivative of the ...
Marian Slodicka
doaj  

Turing patterns across geometries: A proven DSC-ETDRK4 solver from plane to sphere

open access: yesResults in Applied Mathematics
This paper presents a unified and robust numerical framework that combines the Discrete Singular Convolution (DSC) method for spatial discretization with the Exponential Time Differencing Runge–Kutta (ETDRK4) scheme for temporal integration to solve ...
Kolade M. Owolabi   +2 more
doaj   +1 more source

On the relationships between Fourier - Stieltjes coefficients and spectra of measures

open access: yes, 2014
We construct examples of uncountable compact subsets of complex numbers with the property that any Borel measure on the circle group taking values of its Fourier coefficients from this set has natural spectrum.
Ohrysko, Przemysław   +1 more
core   +1 more source

Vibration Analysis of Magneto-Electro-Thermo NanoBeam Resting on Nonlinear Elastic Foundation Using Sinc and Discrete Singular Convolution Differential Quadrature Method

open access: yesModern Applied Science, 2019
Magneto-Electro-Thermo nanobeam resting on a nonlinear elastic foundation is presented. This beam is subjected to the external electric voltage and magnetic potential, mechanical potential and temperature change.
O. Ragb, Mokhtar Mohamed, M. S. Matbuly
semanticscholar   +1 more source

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