Results 21 to 30 of about 696,986 (308)

Time—periodic weak solutions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
In continuing from previous papers, where we studied the existence and uniqueness of the global solution and its asymptotic behavior as time t goes to infinity, we now search for a time-periodic weak solution u(t) for the equation whose weak formulation ...
Eliana Henriques de Brito
doaj   +1 more source

The asymptotic behavior of solutions to a class of inhomogeneous problems: an Orlicz–Sobolev space approach

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
The asymptotic behavior of the sequence $\{v_n\}$ of nonnegative solutions for a class of inhomogeneous problems settled in Orlicz–Sobolev spaces with prescribed Dirichlet data on the boundary of domain $\Omega$ is analysed.
Andrei Grecu, Denisa Stancu-Dumitru
doaj   +1 more source

Weak entropy solutions to a model in induction hardening, existence and weak-strong uniqueness [PDF]

open access: yes, 2019
In this paper, we investigate a model describing induction hardening of steel. The related system consists of an energy balance, an ODE for the different phases of steel, and Maxwell's equations in a potential formulation.
Hömberg, Dietmar Josef   +2 more
core   +1 more source

Weak solutions and weak-strong uniqueness for a thermodynamically consistent phase-field model

open access: yes, 2022
In this paper, we prove the existence of weak solutions for a thermodynamically consistent phase-field model in two and three dimensions of space. We use a notion of solution inspired by previous contributions on the same model and where the pointwise ...
Robert Lasarzik   +5 more
core   +1 more source

Weak solutions with unbounded variation [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
To solve a quasilinear system of hyperbolic partial differential equations with given initial data, the usual procedure is to approximate the initial data, solve the resulting problems, and show that the variation of the approximating solutions is uniformly bounded. A limiting process then can be used.
openaire   +1 more source

ASYMMETRIC IMPURITY SEGREGATION IN MULTI-LAYERED FILMS [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
Peculiarities of segregation of impurities at the boundaries of a thin film separating two different solid materials are considered. Theoretical and numerical analysis of kinetics of impurity redistribution within the film and at the boundaries has been ...
I.M. Davydova   +2 more
doaj  

Global Low-Energy Weak Solutions of a Fluid–Particle Interaction Model with Vacuum in ℝ3

open access: yesAxioms
Provided that the initial data (ρ0,v0,η0) is of small energy around steady state (ρ▵,0,0), in this work we obtain the global-in-time existence of weak solutions to a fluid particle interaction system.
Bingyuan Huang   +3 more
doaj   +1 more source

A semigroups theory approach to a model of suspension bridges

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2013
In this paper we study the existence and uniqueness of the weak solution of a mathematical model that describes the nonlinear oscillations of a suspension bridge. This model is given by a system of partial differential equations with damping terms.
Rodiak Figueroa-López   +1 more
doaj   +1 more source

Weak solutions for diffusion-convection equations

open access: yesApplied Mathematics Letters, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fang, Weifu, Ito, Kazufumi
openaire   +4 more sources

On Uniqueness and Continuous Dependence of the Weak Solutions of Neutral Stochastic Functional Differential Equations in Infinite Dimensional Spaces

open access: yesJournal of Optimization, Differential Equations and Their Applications
In this paper we establish uniqueness of the weak solutions of nonlinear stochastic functional differential equations of neutral type in Hilbert spaces.
Z. P. Khaletska   +3 more
doaj   +1 more source

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