Results 11 to 20 of about 13,821 (251)

On a problem for the parabolic-hyperbolic type equation of fractional order with non-linear loaded term [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
We study the existence and uniqueness of solution of the non-local problem for the parabolic-hyperbolic type equation with non linear loaded term involving Caputo derivative \[ f(x) = \begin{cases} {u_{xx}}-_CD_{0y}^\alpha u+a_1(x)u^{p_1}(x,0), y 0, \\
Obidjon Kh. Abdullaev
doaj   +1 more source

Additional functions and additional boundary conditions in heat conduction problems for multilayer bodies

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2023
Objective. The purpose of the study is to develop a technique for obtaining an analytical solution to the thermal conductivity problem for a 2-layer plate under boundary conditions of the 1st kind.Method.
R. M. Klebleev
doaj   +1 more source

Transient dynamics of 3D inelastic heterogeneous media analysis by the boundary integral equation and the discrete domains methods

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
For the study of transients in 3D nonlinear deformable media we develope modeling methods which based on integral representations of 3D boundary value problem of elastic dynamics, numerical high-order approximation schemes of boundaries and collocation ...
Vladimir A Petushkov
doaj   +1 more source

Solution of contact problems of anisotropic plates bending on an elastic base using the compensating loads method [PDF]

open access: yesE3S Web of Conferences, 2023
In critical structures used elements consisting of anisotropic materials with concentrated force or moment applied to them are often found. In order to equalize the internal force factors, as well as to ensure the required strength and rigidity of the ...
Velikanov Peter
doaj   +1 more source

Local Defect Correction for Boundary Integral Equation Methods

open access: yesComputer Modeling in Engineering & Sciences, 2014
The aim in this paper is to develop a new local defect correction approach to gridding for problems with localised regions of high activity in the boundary element method. The technique of local defect correction has been studied for other methods as finite difference methods and finite volume methods.
Kakuba, G., Anthonissen, M.J.H.
openaire   +1 more source

The Global Element Method for Three- Dimensional Potential Problems

open access: yesIEEE Access
This paper presents the Global Element Method (GEM) for solving three-dimensional potential problems. Compared to traditional boundary element methods, this approach offers significant advantages.
Xinrong Li, Chao Zhang, Yaoming Zhang
doaj   +1 more source

Well-posedness of the inverse problem of time fractional heat equation in the sense of the Atangana-Baleanu fractional approach

open access: yesAlexandria Engineering Journal, 2020
In the present work, an inverse problem for the heat equation in two dimensional space with Robin boundary condition that involving a new fractional derivative, namely, Atangana-Baleanu approach with non-local and non-singular kernel is considered.
Smina Djennadi   +2 more
doaj   +1 more source

About a Problem for Loaded Parabolic-Hyperbolic Type Equation with Fractional Derivatives

open access: yesInternational Journal of Differential Equations, 2016
An existence and uniqueness of solution of local boundary value problem with discontinuous matching condition for the loaded parabolic-hyperbolic equation involving the Caputo fractional derivative and Riemann-Liouville integrals have been investigated ...
Kishin B. Sadarangani   +1 more
doaj   +1 more source

A mathematical model for a steady-state seepage flow of groundwater under a reinforced concrete dam

open access: yesApplied Computing and Geosciences, 2019
A numerical technique is applied to solve a biharmonic equation problem of a steady-state seepage flow of water through a thin layer of soil, under an impermeable dam.
Miltiades C. Elliotis
doaj   +1 more source

Numerical Method for Determining Potential Coefficients Matrix for Multiconductor Transmission Line [PDF]

open access: yesProblems of the Regional Energetics, 2018
Consider the propagation of electromagnetic energy through multiconductor three-phase high-voltage transmission line with arbitrary number of conductors.
Patiuk V.
doaj   +1 more source

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