Articles with "initial boundary" as a keyword



Variations of heat equation on the half‐line via the Fokas method

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Published in 2024 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.10303

Abstract: In this review paper, we discuss some of our recent results concerning the rigorous analysis of initial boundary value problems (IBVPs) and newly discovered effects for certain evolution partial differential equations (PDEs). These equations arise… read more here.

Keywords: method; variations heat; fokas; equation half ... See more keywords

Initial Boundary Value Problem for Partial Differential–Algebraic Equations With Parameter

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Published in 2025 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.10663

Abstract: The paper addresses an initial boundary value problem for a partial differential–algebraic equation involving a parameter. An integral condition with respect to the time derivative of the unknown function is provided as an additional condition… read more here.

Keywords: problem; boundary value; value problem; initial boundary ... See more keywords

Integral Representation of Solutions to Initial‐Boundary Value Problems on a Finite Interval in the Framework of the Hyperbolic Heat Equation

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Published in 2025 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.11140

Abstract: We consider initial‐boundary value problems on a finite interval for the system of the energy balance equation and modified Fourier's law (constitutive equation, commonly called the Cattaneo equation) describing temperature (or internal energy) and heat… read more here.

Keywords: equation; heat; value problems; boundary value ... See more keywords

Global existence of solutions of initial boundary value problem for nonlocal parabolic equation with nonlocal boundary condition

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Published in 2020 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.6286

Abstract: We prove the global existence and blow‐up of solutions of an initial boundary value problem for nonlinear nonlocal parabolic equation with nonlinear nonlocal boundary condition. Obtained results depend on the behavior of variable coefficients for… read more here.

Keywords: boundary value; global existence; nonlocal parabolic; solutions initial ... See more keywords

Modeling of uncertainty for flood wave propagation induced by variations in initial and boundary conditions using expectation operator on explicit numerical solutions

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Published in 2018 at "International Journal for Numerical Methods in Engineering"

DOI: 10.1002/nme.5702

Abstract: This study proposes a framework for uncertainty analysis by incorporating explicit numerical solutions of governing equations for flood wave propagation with the expectation operator. It aims at effectively evaluating the effect of variations in initial… read more here.

Keywords: explicit numerical; uncertainty; initial boundary; numerical solutions ... See more keywords

GENERIC-based formulation and discretization of initial boundary value problems for finite strain thermoelasticity

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Published in 2019 at "Computational Mechanics"

DOI: 10.1007/s00466-019-01781-5

Abstract: A new variational formulation for finite strain thermoelastodynamics is proposed. The variational formulation emanates from the GENERIC formalism and makes possible the free choice of the thermodynamic state variable. In particular, one may choose the… read more here.

Keywords: finite strain; state variable; initial boundary; formulation ... See more keywords

How to avoid order reduction when Lawson methods integrate nonlinear initial boundary value problems

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Published in 2021 at "Bit Numerical Mathematics"

DOI: 10.1007/s10543-021-00879-8

Abstract: It is well known that Lawson methods suffer from a severe order reduction when integrating initial boundary value problems where the solutions are not periodic in space or do not satisfy enough conditions of annihilation… read more here.

Keywords: initial boundary; order; order reduction; lawson methods ... See more keywords

Modeling of the Processes of Heterodiffusion in Two Ways for the Cascade Decay of Admixture Particles. І. Cascade-Type Initial-Boundary-Value Problems

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Published in 2021 at "Journal of Mathematical Sciences"

DOI: 10.1007/s10958-021-05294-6

Abstract: We study the processes of heterodiffusion of admixtures in the case of their cascade decay in a body with two ways of migration accompanied by the mass exchange between states. For the case of unbranched… read more here.

Keywords: cascade type; cascade decay; initial boundary; processes heterodiffusion ... See more keywords

Reproducing Kernel Method for Singularly Perturbed One-Dimensional Initial-Boundary Value Problems with Exponential Initial Layers

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Published in 2018 at "Qualitative Theory of Dynamical Systems"

DOI: 10.1007/s12346-017-0242-3

Abstract: In this paper, a meshless numerical method is proposed for singularly perturbed one-dimensional initial-boundary value problems with exponential initial layers. The method is a combination of the domain decomposition method and the reproducing kernel method.… read more here.

Keywords: singularly perturbed; reproducing kernel; initial boundary; one dimensional ... See more keywords

Boundary value technique based on a fifth derivative method of order 10 for fourth order initial and boundary value problems

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Published in 2018 at "Afrika Matematika"

DOI: 10.1007/s13370-018-0572-6

Abstract: In this paper, the fourth order ordinary differential equation (ODE) of the form $$y^{(iv)}=f(x,y,y',y'',y''')$$y(iv)=f(x,y,y′,y′′,y′′′) subject to initial or boundary conditions is solved directly without reducing the higher ODE into an equivalent first order system. This… read more here.

Keywords: order; initial boundary; method; fifth derivative ... See more keywords

On the initial-boundary value problem for some quasilinear parabolic equations of divergence form

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Published in 2017 at "Journal of Differential Equations"

DOI: 10.1016/j.jde.2017.08.056

Abstract: Abstract In this paper we give an existence theorem of global classical solution to the initial boundary value problem for the quasilinear parabolic equations of divergence form u t − div { σ ( |… read more here.

Keywords: initial boundary; quasilinear parabolic; value problem; boundary value ... See more keywords