Title
Computing the Stable Manifold of a Saddle Slow Manifold.
Abstract
The behavior of systems with fast and slow time scales is organized by families of locally invariant slow manifolds. Recently, numerical methods have been developed for the approximation of attracting and repelling slow manifolds. However, the accurate computation of saddle slow manifolds, which are typical in higher dimensions, is still an active area of research. A saddle slow manifold has associated stable and unstable manifolds that contain both fast and slow dynamics, which makes them challenging to compute. We give a precise definition for the stable manifold of a saddle slow manifold and design an algorithm to compute it; our computational method is formulated as a two-point boundary value problem that is solved by pseudo-arclength continuation with AUTO. We explain how this manifold acts as a separatrix and determines the number of spikes in the transient response generated by a stimulus with fixed amplitude and duration in two different models.
Year
DOI
Venue
2018
10.1137/17M1132458
SIAM JOURNAL ON APPLIED DYNAMICAL SYSTEMS
Keywords
Field
DocType
geometric singular perturbation theory,saddle slow manifold,two-point boundary value problem,transient dynamics,separatrix
Slow manifold,Saddle,Boundary value problem,Stable manifold,Mathematical analysis,Invariant (mathematics),Numerical analysis,Mathematics,Manifold,Computation
Journal
Volume
Issue
ISSN
17
1
1536-0040
Citations 
PageRank 
References 
0
0.34
6
Authors
3
Name
Order
Citations
PageRank
Saeed Farjami100.34
Vivien Kirk2225.61
Hinke M. Osinga316020.82