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Dunkl Hyperbolic Equations [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2008
We introduce and study the Dunkl symmetric systems. We prove the well-posedness results for the Cauchy problem for these systems. Eventually we describe the finite speed of it. Next the semi-linear Dunkl-wave equations are also studied.Comment: This is a
Mejjaoli, Hatem
core   +8 more sources

Inverse problems for nonlinear hyperbolic equations

open access: yes, 2021
There has been considerable progress in recent years in solving inverse problems for nonlinear hyperbolic equations. One of the striking aspects of these developments is the use of nonlinearity to get new information, which is not possible for the ...
G. Uhlmann, J. Zhai
semanticscholar   +1 more source

The Fuchsian approach to global existence for hyperbolic equations [PDF]

open access: yesCommunications in Partial Differential Equations, 2019
We analyze the Cauchy problem for symmetric hyperbolic equations with a time singularity of Fuchsian type and establish a global existence theory along with decay estimates for evolutions toward the singular time under a small initial data assumption. We,
F. Beyer   +2 more
semanticscholar   +1 more source

Recovery of time dependent coefficients from boundary data for hyperbolic equations [PDF]

open access: yesJournal of Spectral Theory, 2019
We study uniqueness of the recovery of a time-dependent magnetic vector-valued potential and an electric scalar-valued potential on a Riemannian manifold from the knowledge of the Dirichlet to Neumann map of a hyperbolic equation.
A. Feizmohammadi   +3 more
semanticscholar   +1 more source

Contact Geometry of Hyperbolic Equations of Generic Type [PDF]

open access: yes, 2008
We study the contact geometry of scalar second order hyperbolic equations in the plane of generic type. Following a derivation of parametrized contact-invariants to distinguish Monge-Ampere (class 6-6), Goursat (class 6-7) and generic (class 7-7 ...
The, Dennis
core   +3 more sources

Blow-up for solutions of hyperbolic PDE and spacetime singularities [PDF]

open access: yes, 2000
An important question in mathematical relativity theory is that of the nature of spacetime singularities. The equations of general relativity, the Einstein equations, are essentially hyperbolic in nature and the study of spacetime singularities is ...
Rendall, Alan D.
core   +4 more sources

Existence of Pseudo Almost Periodic Solutions to Some Classes of Partial Hyperbolic Evolution Equations [PDF]

open access: yes, 2006
The paper examines the existence of pseudo almost periodic solutions to some classes of partial hyperbolic evolution equations. Namely, sufficient conditions for the existence and uniqueness of pseudo almost periodic solutions to those classes of ...
Diagana, Toka
core   +4 more sources

Hyperbolic integrodifferential equations [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
Hyperbolic integrodifferential equations are defined and conditions sufficient for hyperbolicity are given. The theory includes that of constant coefficient hyperbolic partial differential equations. Other examples are given.
openaire   +1 more source

Fixing Einstein's equations [PDF]

open access: yes, 1999
Einstein's equations for general relativity, when viewed as a dynamical system for evolving initial data, have a serious flaw: they cannot be proven to be well-posed (except in special coordinates).
Anderson, Arlen, York, Jr, James W.
core   +3 more sources

SIAC Filtering for Nonlinear Hyperbolic Equations [PDF]

open access: yes, 2015
We present the results of the symmetric and one-sided Smoothness-Increasing Accuracy-Conserving (SIAC) filter applied to a discontinuous Galerkin (DG) approximation for two examples of nonlinear hyperbolic conservation laws.
Li, Xiaozhou, Ryan, Jennifer
core   +1 more source

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