Results 11 to 20 of about 148,179 (227)

Approximate Methods for Solving Problems of Mathematical Physics on Neural Hopfield Networks

open access: yesMathematics, 2022
A Hopfield neural network is described by a system of nonlinear ordinary differential equations. We develop a broad range of numerical schemes that are applicable for a wide range of computational problems.
Ilya Boykov   +2 more
doaj   +1 more source

Controlled Positive Dynamic Systems with an Entropy Operator: Fundamentals of the Theory and Applications

open access: yesMathematics, 2021
Controlled dynamic systems with an entropy operator (DSEO) are considered. Mathematical models of such systems were used to study the dynamic properties in demo-economic systems, the spatiotemporal evolution of traffic flows, recurrent procedures for ...
Yuri S. Popkov
doaj   +1 more source

Problems of steady vibrations in the coupled linear theory of double-porosity viscoelastic materials

open access: yesArchives of Mechanics, 2021
In the present paper the coupled linear theory of double-porosity viscoelastic materials is considered and the basic boundary value problems (BVPs) of steady vibrations are investigated.
M.M. Svanadze
doaj   +1 more source

Approximate solution of a system of singular integral equations of the first kind by using Chebyshev polynomials [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2019
The aim of the present work is to introduce a method based on the Chebyshev polynomials for numerical solution of a system of Cauchy type singular integral equations of the first kind on a finite segment. Moreover, an estimation error is computed for the
S. Ahdiaghdam, S. Shahmorad
doaj   +1 more source

Boundary control of a singular reaction-diffusion equation on a disk [PDF]

open access: yes, 2016
Recently, the problem of boundary stabilization for unstable linear constant-coefficient reaction-diffusion equation on N-balls has been solved by means of the backstepping method.
Krstic, Miroslav, Vazquez, Rafael
core   +2 more sources

On Some Results of Investigation of Singular Systems of Integro- Differential Equations Obtained by Yu. Ye. Boyarintsev Research Group

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2017
This paper is dedicated to the 110th anniversary of the dean of the mathematical faculty of Irkutsk State University Vladimir Vladimirovich Vasiliev.
M. V. Bulatov, V. F. Chistyakov
doaj   +1 more source

Accurate computation of Galerkin double surface integrals in the 3-D boundary element method [PDF]

open access: yes, 2015
Many boundary element integral equation kernels are based on the Green's functions of the Laplace and Helmholtz equations in three dimensions. These include, for example, the Laplace, Helmholtz, elasticity, Stokes, and Maxwell's equations.
Adelman, Ross   +2 more
core   +3 more sources

Finite-part singular integral approximations in Hilbert spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Some new approximation methods are proposed for the numerical evaluation of the finite-part singular integral equations defined on Hilbert spaces when their singularity consists of a homeomorphism of the integration interval, which is a unit circle, on ...
E. G. Ladopoulos   +2 more
doaj   +1 more source

Solvability of singular integral equations with rotations and degenerate kernels in the vanishing coefficient case [PDF]

open access: yes, 2015
By means of Riemann boundary value problems and of certain convenient systems of linear algebraic equations, this paper deals with the solvability of a class of singular integral equations with rotations and degenerate kernel within the case of a ...
Chuan L. H.   +23 more
core   +1 more source

Two‐grid iteration method for weakly singular integral equations

open access: yesMathematical Modelling and Analysis, 2000
For the solution of weakly singular integral equations by the piecewise polynomial collocation method it is necessary to solve large linear systems.
K. Hakk
doaj   +1 more source

Home - About - Disclaimer - Privacy