Results 21 to 30 of about 1,691,019 (337)

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

Global solutions and decay of a nonlinear coupled system with thermo-elastic

open access: yesPesquimat, 2016
In this present work, the authors prove the existence of global solutions and the decay of nonlinear wave equation with thermo-elastic coupling give by the system of equation…..
Ricardo Fuentes Apolaya   +1 more
doaj   +1 more source

Modeling and analysis of a phase field system for damage and phase separation processes in solids [PDF]

open access: yes, 2013
In this work, we analytically investigate a multi-component system for describing phase separation and damage processes in solids. The model consists of a parabolic diffusion equation of fourth order for the concentration coupled with an elliptic system ...
Bonetti, Elena   +3 more
core   +3 more sources

Uniqueness of solutions for a mathematical model for magneto-viscoelastic flows

open access: yes, 2017
We investigate uniqueness of weak solutions for a system of partial differential equations capturing behavior of magnetoelastic materials. This system couples the Navier-Stokes equations with evolutionary equations for the deformation gradient and for ...
Schlömerkemper, Anja, Žabenský, Josef
core   +1 more source

Weak solutions via two-field Lagrange multipliers for boundary value problems in mathematical physics

open access: yesMathematical Modelling and Analysis, 2022
A new variational approach for a boundary value problem in mathematical physics is proposed. By considering two-field Lagrange multipliers, we deliver a variational formulation consisting of a mixed variational problem which is equivalent with a saddle ...
Mariana Chivu Cojocaru, Andaluzia Matei
doaj   +1 more source

Weak solutions to problems involving inviscid fluids

open access: yes, 2015
We consider an abstract functional-differential equation derived from the pressure-less Euler system with variable coefficients that includes several systems of partial differential equations arising in the fluid mechanics.
C Audiard   +14 more
core   +1 more source

Local existence and uniqueness in the largest critical space for a surface growth model [PDF]

open access: yes, 2010
We show the existence and uniqueness of solutions (either local or global for small data) for an equation arising in different aspects of surface growth.
Blomker, Dirk, Romito, Marco
core   +4 more sources

Weak transversality and partially invariant solutions [PDF]

open access: yesJournal of Mathematical Physics, 2003
New exact solutions are obtained for several nonlinear physical equations, namely the Navier–Stokes and Euler systems, an isentropic compressible fluid system and a vector nonlinear Schrödinger equation. The solution method makes use of the symmetry group of the system in situations when the standard Lie method of symmetry reduction is not applicable.
Grundland, A. M.   +2 more
openaire   +3 more sources

Mathematical models for erosion and the optimal transportation of sediment

open access: yes, 2013
We investigate a mathematical theory for the erosion of sediment which begins with the study of a non-linear, parabolic, weighted 4-Laplace equation on a rectangular domain corresponding to a base segment of an extended landscape.
Birnir, B., Rowlett, J.
core   +1 more source

On the Burgers-Poisson Equation [PDF]

open access: yes, 2016
In this paper, we prove the existence and uniqueness of weak entropy solutions to the Burgers-Poisson equation for initial data in L^1(R). Additional an Oleinik type estimate is established and some criteria on local smoothness and wave breaking for weak
Grunert, Katrin, Nguyen, Khai T.
core   +2 more sources

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