Title
Convergence rates to discrete shocks for nonconvex conservation laws
Abstract
Summary.   This paper is concerned with polynomial decay rates of perturbations to stationary discrete shocks for the Lax-Friedrichs scheme approximating non-convex scalar conservation laws. We assume that the discrete initial data tend to constant states as , respectively, and that the Riemann problem for the corresponding hyperbolic equation admits a stationary shock wave. If the summation of the initial perturbation over is small and decays with an algebraic rate as , then the perturbations to discrete shocks are shown to decay with the corresponding rate as . The proof is given by applying weighted energy estimates. A discrete weight function, which depends on the space-time variables for the decay rate and the state of the discrete shocks in order to treat the non-convexity, plays a crucial role.
Year
DOI
Venue
2001
10.1007/s211-001-8013-4
Numerische Mathematik
Keywords
Field
DocType
riemann problem,space time,decay rate,shock wave,conservation law,hyperbolic equation,weight function,convergence rate
Existence theorem,Weight function,Mathematical analysis,Uniqueness theorem for Poisson's equation,Initial value problem,Rate of convergence,Riemann problem,Conservation law,Mathematics,Hyperbolic partial differential equation
Journal
Volume
Issue
ISSN
88
3
0029-599X
Citations 
PageRank 
References 
1
0.44
2
Authors
3
Name
Order
Citations
PageRank
Hailiang Liu1396.57
Jinghua Wang216222.31
Gerald Warnecke3356.92