Results 11 to 20 of about 1,483,225 (280)

THE INITIAL-BOUNDARY VALUE PROBLEM IN GENERAL RELATIVITY [PDF]

open access: yesInternational Journal of Modern Physics D, 2011
In this article we summarize what is known about the initial-boundary value problem for general relativity and discuss present problems related to it.
Reula, Oscar, Sarbach, Olivier
openaire   +3 more sources

Initial-boundary value problem to 2D Boussinesq equations for MHD convection with stratification effects [PDF]

open access: green, 2017
This paper is concerned with the initial-boundary value problem to 2D magnetohydrodynamics-Boussinesq system with the temperature-dependent viscosity, thermal diffusivity and electrical conductivity.
Dongfen Bian, Jitao Liu
semanticscholar   +3 more sources

The initial boundary value problem and quasi-local Hamiltonians in general relativity [PDF]

open access: yesClassical and quantum gravity, 2021
We discuss relations between the initial boundary value problem (IBVP) and quasi-local Hamiltonians in GR. The latter have traditionally been based on Dirichlet boundary conditions, which however are shown here to be ill-posed for the IBVP.
Z. An, Michael T. Anderson
semanticscholar   +1 more source

Asymptotic estimations of the solution for a singularly perturbed equation with unbounded boundary conditions [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
The paper studies a two-point boundary value problem with unbounded boundary conditions for a linear singularly perturbed differential equation. Asymptotic estimates are given for a linearly independent system of solutions of a homogeneous perturbed ...
N. Atakhan   +2 more
doaj   +2 more sources

Initial-boundary Value Problem for a Time-fractional Subdiffusion Equation with an Arbitrary Elliptic Differential Operator [PDF]

open access: yesLobachevskii Journal of Mathematics, 2020
An initial-boundary value problem for a time-fractional subdiffusion equation with an arbitrary order elliptic differential operator is considered.
R. Ashurov, O. Muhiddinova
semanticscholar   +1 more source

Duhamel-type integral for the initial boundary value problem

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2021
The paper considers the initial boundary value problem for the wave equation for the case of three spatial variables. The definition of a generalized solution is introduced and the existence and uniqueness theorem is proved.
Anikonov Dmitry, Konovalova Dina
doaj   +1 more source

An initial-boundary value problem for the integrable spin-1 Gross-Pitaevskii equations with a 4 × 4 Lax pair on the half-line. [PDF]

open access: yesChaos, 2017
We extend the idea of the Fokas unified transform to investigate the initial-boundary value problem for the integrable spin-1 Gross-Pitaevskii equations with a 4 × 4 Lax pair on the half-line.
Zhenya Yan
semanticscholar   +1 more source

An Intial-Value Technique for Self-Adjoint Singularly Perturbed Two-Point Boundary Value Problems

open access: yesInternational Journal of Applied Mechanics and Engineering, 2020
In this paper, we present an initial value technique for solving self-adjoint singularly perturbed linear boundary value problems. The original problem is reduced to its normal form and the reduced problem is converted to first order initial value ...
P. Padmaja, P. Aparna, R.S.R. Gorla
doaj   +1 more source

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