Results 31 to 40 of about 815,798 (337)

Extended block Hessenberg method for large-scale Sylvester differential matrix equations [PDF]

Journal of Mahani Mathematical Research
In this paper, we consider large-scale low-rank Sylvester differential matrix equations. We present two iterative methods for the approximate solution of such differential matrix equations. In the first method, exploiting the extended block Krylov method,
Azita Tajaddini
doaj   +1 more source

Asymptotically almost periodic solutions for certain differential equations with piecewise constant arguments

Advances in Difference Equations, 2020
It is well known that differential equations with piecewise constant arguments is a class of functional differential equations, which has fascinated many scholars in recent years.
Zonghong Feng, Yong Wang, Xin Ma
doaj   +1 more source

Combining a fractional diffusion equation and a fractional viscosity-based magneto dynamic model to simulate the ferromagnetic hysteresis losses

AIP Advances, 2022
Magnetic losses in a laminated ferromagnetic core have been studied for years. However, magnetization mechanisms are complex, and the ideal model is still lacking.
B. Ducharne, G. Sebald
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New techniques for solving some matrix and matrix differential equations

Ain Shams Engineering Journal, 2015
Matrix and matrix differential equations play an important role in system theory, control theory, stability theory of differential equations, communication systems and many other fields.
Zeyad Abdel Aziz Al-Zhour
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Barycentric Interpolation Collocation Method for Solving Fractional Linear Fredholm-Volterra Integro-Differential Equation

Journal of Function Spaces, 2023
In this article, barycentric interpolation collocation method (BICM) is presented to solve the fractional linear Fredholm-Volterra integro-differential equation (FVIDE).
Jin Li, Kaiyan Zhao, Xiaoning Su
doaj   +1 more source

Finding of roots of the matrix transcendental characteristic equation using Lambert W function

Lietuvos Matematikos Rinkinys, 2011
The method of finding roots of the matrix transcendental characteristic equation, corresponding to linear matrix differential equation with delayed argument, is analyzed. The examples of the application of the method are presented.
Irma Ivanovienė, Jonas Rimas
doaj   +1 more source

Quantum Derivation of the Bloch Equations Excluding Relaxation

Concepts in Magnetic Resonance: Part A, Bridging Education and Research, 2022
The equation of motion of the density matrix of an ensemble of identical spin-1/2 nuclei subject to a rotating-frame radiofrequency field and Zeeman frequency offset is derived from the Schrodinger equation and shown to be equivalent to the magnetization
Eric R. Johnston
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H2/H∞ output information-based disturbance attenuation for differential linear repetitive processes

, 2011
Repetitive processes propagate information in two independent directions where the duration of one is finite. They pose control problems that cannot be solved by application of results for other classes of 2D systems.
Barton, Bristow, Du, Fornasini, Hladowski, Lu, Packard, Paszke, Roberts, Roesser, Rogers, Scherer, Tuan   +12 more
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An Operational Matrix Technique for Solving Variable Order Fractional Differential-Integral Equation Based on the Second Kind of Chebyshev Polynomials

Advances in Mathematical Physics, 2016
An operational matrix technique is proposed to solve variable order fractional differential-integral equation based on the second kind of Chebyshev polynomials in this paper. The differential operational matrix and integral operational matrix are derived
Jianping Liu, Xia Li, Limeng Wu
doaj   +1 more source

Matrix generalizations of integrable systems with Lax integro-differential representations

Karpatsʹkì Matematičnì Publìkacìï, 2013
We found matrix integro-differential Lax representations for Davey-Stewartson systems (DSI, DS-II, DS-III), (2+1)-dimensional generalizations of Chen-Lee-Liu equation and its higher symmetries.
Yu. M. Sydorenko, O. I. Chvartatskyi
doaj   +1 more source