Perturbations of superstable linear hyperbolic systems

Autor: Natalya Lyul'ko, Irina Kmit
Rok vydání: 2018
Předmět:
Zdroj: Journal of Mathematical Analysis and Applications. 460:838-862
ISSN: 0022-247X
DOI: 10.1016/j.jmaa.2017.12.030
Popis: The paper deals with initial-boundary value problems for linear non-autonomous first order hyperbolic systems whose solutions stabilize to zero in a finite time. We prove that problems in this class remain exponentially stable in L 2 as well as in C 1 under small bounded perturbations. To show this for C 1 , we prove a general smoothing result implying that the solutions to the perturbed problems become eventually C 1 -smooth for any L 2 -initial data.
Databáze: OpenAIRE