Results 61 to 70 of about 221 (109)

Propagation Of Singularities for Semilinear Hyperbolic Equations

open access: yes, 1993
In this paper we use a particular kind of weighted Sobolev space and pseudo-differential operators to study H3s propagation of singularities for the solution u ∊ Hs of the equations with second order.
Linqi Liu
core   +1 more source

Hyperbolic to Parabolic Relaxation Theory for Quasilinear First Order Systems

open access: yes, 2000
In this paper we study the limiting behavior of nonhomogeneous hyperbolic systems of balance laws when the relaxed equilibria are described by means of systems of parabolic type.
Marcati, Pierangelo, Rubino, Bruno
core   +1 more source

Shooting methods for numerical solutions of control problems constrained by linear and nonlinear hyperbolic partial differential equations

open access: yes, 2004
We consider shooting methods for computing approximate solutions of control problems constrained by linear or nonlinear hyperbolic partial differential equations.
Yang, Sung-Dae
core   +1 more source

Relaxation Approximations to Front Propagation

open access: yes, 1997
We introduce a relaxation model for front propagation problems. Our proposed relaxation approximation is a semilinear hyperbolic system without singularities. It yields a direction-depedent normal velocity at the leading term and captures, in the Chapman–
Jin, S   +3 more
core   +1 more source

Strong stability and uniform decay of solutions to a wave equation with semilinear porous acoustic boundary conditions

open access: yes, 2011
International audienceWe consider a wave equation with semilinear porous acoustic boundary conditions. This is a coupled system of second and first order in time partial differential equations, with possibly semilinear boundary conditions on the ...
P. Jameson Graber   +1 more
core   +1 more source

Nonlinear stability of two-layer shallow water flows with a free surface. [PDF]

open access: yesProc Math Phys Eng Sci, 2020
de Melo Viríssimo F, Milewski PA.
europepmc   +1 more source

A nonlocal mixed semilinear problem for second-order hyperbolic equations

open access: yes, 2003
In this work we study a nonlinear hyperbolic one-dimensional problem with a nonlocal condition.
Mesloub, Said, Messaoudi, Salim A.
core  

Explicit Formulas to the Solutions of Several Equations of Mathematical Physics [PDF]

open access: yes, 2014
[Popivanov Petar; Попиванов Петър]Explicit formulas to the solutions of several equations of mathematical physics including semilinear multidimensional Klein-Gordon equation, the wave equation, Kadomtsev-Petviashvili equation and cubic first order ...
Popivanov, Petar
core  

Singular limits for nonlinear hyperbolic systems

open access: yes, 2002
The paper is concerned with singular limits for the nonlinear hyperbolic system Wt+A(x,W,D)W=1εF(W),(1) where W=W(x,t) takes values in RN, x∈Rd, A(x,W,D) is a first-order differential or pseudodifferential operator, F(W) denotes the nonhomogeneous term,
DONATELLI, DONATELLA   +1 more
core  

On Dynamics and Bifurcations of Nonlinear Evolution Equations Under Numerical Discretization

open access: yes, 1999
This article reviews recent results on long-time behaviour, invariant sets and bifurcations of evolution equations under discretization by numerical methods. The emphasis is on time discretization.
Christian Lubich
core  

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