Title
Young Measure Approach to Computing Slowly Advancing Fast Oscillations
Abstract
We offer a multiscale and averaging strategy to compute the solution of a singularly perturbed system when the fast dynamics oscillates rapidly; namely, the fast dynamics, rather than settling on a manifold of smaller order, forms cycle-like limits which advance along with the slow dynamics. We describe the limit as a Young measure with values being supported on the limit cycles, averaging with respect to which induces the equation for the slow dynamics. In particular, computing the tube of limit cycles establishes a good approximation for arbitrarily small singular parameters. Possible algorithms are displayed and concrete numerical examples are exhibited.
Year
DOI
Venue
2008
10.1137/070687219
MULTISCALE MODELING & SIMULATION
Keywords
Field
DocType
singular perturbations,limit cycles,Young measures,multiscale computation
Settling,Oscillation,Mathematical optimization,Mathematical analysis,Young measure,Manifold,Mathematics
Journal
Volume
Issue
ISSN
6
4
1540-3459
Citations 
PageRank 
References 
3
0.80
1
Authors
3
Name
Order
Citations
PageRank
Zvi Artstein19822.35
Jasmine Linshiz230.80
Edriss S. Titi38728.28