A relaxation theorem for differential inclusions with applications to stability properties. Ingalls, B., Sontag, E., & Wang, Y. In Gilliam, D. & Rosenthal, J., editors, Mathematical Theory of Networks and Systems, Electronic Proceedings of MTNS-2002 Symposium held at the University of Notre Dame, August 2002, 2002. (12 pages)abstract bibtex The fundamental Filippov–Wazwski Relaxation Theorem states that the solution set of an initial value problem for a locally Lipschitz inclusion is dense in the solution set of the same initial value problem for the corresponding relaxation inclusion on compact intervals. In a recent paper of ours, a complementary result was provided for inclusions with finite dimensional state spaces which says that the approximation can be carried out over non-compact or infinite intervals provided one does not insist on the same initial values. This note extends the infinite-time relaxation theorem to the inclusions whose state spaces are Banach spaces. To illustrate the motivations for studying such approximation results, we briefly discuss a quick application of the result to output stability and uniform output stability properties.
@INPROCEEDINGS{02mtns-relaxation,
AUTHOR = {B.P. Ingalls and E.D. Sontag and Y. Wang},
BOOKTITLE = {Mathematical Theory of Networks and Systems, Electronic Proceedings of MTNS-2002 Symposium held at the University of Notre Dame, August 2002},
TITLE = {A relaxation theorem for differential inclusions with
applications to stability properties},
YEAR = {2002},
OPTADDRESS = {},
OPTCROSSREF = {},
EDITOR = {D. Gilliam and J. Rosenthal},
OPTMONTH = {},
NOTE = {(12 pages)},
OPTNUMBER = {},
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OPTSERIES = {},
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PDF = {../../FTPDIR/02mtns-ingalls-sontag-wang.pdf},
ABSTRACT = { The fundamental Filippov--Wazwski Relaxation Theorem
states that the solution set of an initial value problem for a
locally Lipschitz inclusion is dense in the solution set of the same
initial value problem for the corresponding relaxation inclusion on
compact intervals. In a recent paper of ours, a complementary result
was provided for inclusions with finite dimensional state spaces
which says that the approximation can be carried out over non-compact
or infinite intervals provided one does not insist on the same
initial values. This note extends the infinite-time relaxation
theorem to the inclusions whose state spaces are Banach spaces. To
illustrate the motivations for studying such approximation results,
we briefly discuss a quick application of the result to output
stability and uniform output stability properties. }
}
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