Vanishing viscosity solutions of nonlinear hyperbolic systems
In: Annals of mathematics, Jg. 161 (2005), Heft 1, S. 223-342
Online
academicJournal
- print, 2 p.1/4
Zugriff:
We consider the Cauchy problem for a strictly hyperbolic, n x n system in one-space dimension: ut + A(u)ux = 0, assuming that the initial data have small total variation. We show that the solutions of the viscous approximations ut + A(u)ux = ∈uxx are defined globally in time and satisfy uniform BV estimates, independent of e. Moreover, they depend continuously on the initial data in the L1 distance, with a Lipschitz constant independent of t, e. Letting e → 0, these viscous solutions converge to a unique limit, depending Lipschitz continuously on the initial data. In the conservative case where A = Df is the Jacobian of some flux function f: R → Rn, the vanishing viscosity limits are precisely the unique entropy weak solutions to the system of conservation laws ut + f(u)x = 0.
Titel: |
Vanishing viscosity solutions of nonlinear hyperbolic systems
|
---|---|
Autor/in / Beteiligte Person: | BIANCHINI, Stefano ; BRESSAN, Alberto |
Link: | |
Zeitschrift: | Annals of mathematics, Jg. 161 (2005), Heft 1, S. 223-342 |
Veröffentlichung: | Princeton, NJ: Princeton University Press, 2005 |
Medientyp: | academicJournal |
Umfang: | print, 2 p.1/4 |
ISSN: | 0003-486X (print) |
Schlagwort: |
|
Sonstiges: |
|