Results 41 to 50 of about 281,878 (266)
Boundary value problems for partial differential equations with piecewise contant delay
International Journal of Mathematics and Mathematical Sciences, 1991 The influence of certain discontinuous delays on the behavior of solutions to some typical equations of mathematical physics is studied.
Joseph Wiener
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Vibration of a Flexible Hanging Chain with a Mass on the End in a Nonstationary Regime of the Motion Mechanism in Hoisting Machines [PDF]
Journal of Applied and Computational MechanicsThe article is focused on the vibrations of a heavy chain with a mass on the end when the hoisting machines are in a nonstationary regime of motion, assuming that motor or brake torque is a linear function of the speed of the motion mechanism.
Vassil Zlatanov, Svetoslav Nikolov
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Second boundary-value problem for the generalized Aller–Lykov equation
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019 The equations that describe a new type of wave motion arise in the course of mathematical modeling for continuous media with memory. This refers to differential equations of fractional order, which form the basis for most mathematical models describing a
Marat Aslanbievich Kerefov +1 more
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Two-dimensional local Fourier image reconstruction via domain decomposition Fourier continuation method. [PDF]
PLoS ONE, 2019 The MRI image is obtained in the spatial domain from the given Fourier coefficients in the frequency domain. It is costly to obtain the high resolution image because it requires higher frequency Fourier data while the lower frequency Fourier data is less
Ruonan Shi +2 more
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A simple method for a fourier analysis [PDF]
Physica, 1953 Synopsis A Fourier analysis has been made using only a phototension cell, an alternating current galvanometer and a rotating device.
Milatz, J.M.W. +2 more
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Non-stationary heat exchange in cylindrical channel at laminar flow of fluids
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013 Using double integral Laplace–Carson transformation and orthogonal method of Bubnov–Galyorkin, the analytical solution of the non-stationary problem of heat transfer in a cylindrical channel in the laminar flow of fluids was obtained. It has two components:
Anton V Eremin +3 more
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New method for renormalon subtraction using Fourier transform
Physics Letters B, 2021 To improve accuracy in calculating QCD effects, we propose a method for renormalon subtraction in the context of the operator-product expansion. The method enables subtracting renormalons of various powers in ΛQCD efficiently and simultaneously from ...
Y. Hayashi, Y. Sumino, H. Takaura
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Mathematics, 2022 Inhomogeneous elliptical inclusions with partial differential equations have aroused appreciable concern in many disciplines. In this paper, a pseudo-spectral collocation method, based on Fourier basis functions, is proposed for the numerical solutions ...
Xiao Wang +3 more
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On Variational Fourier Particle Methods
Journal of Scientific ComputingAbstractIn this article we describe a unifying framework for variational electromagnetic particle schemes of spectral type, and we propose a novel spectral Particle-In-Cell (PIC) scheme that preserves a discrete Hamiltonian structure. Our work is based on a new abstract variational derivation of particle schemes which builds on a de Rham complex where ...
Martin Campos Pinto +3 more
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Solution of Lane-Emden Equation with Fourier Decomposition Method
Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2022 In this article, we tried to get the solution of a class of Lane Emden type equations by using the Fourier Decomposition Method. This method is obtained by using the Fourier transform and the Adomian Decomposition method (FADM) together.
Murat Düz
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