Greater accuracy and broadened applicability of phase reduction using isostable coordinates
Greater accuracy and broadened applicability of phase reduction using isostable coordinates
复制标题
使用等稳态坐标进行相位还原的更高精确度和更广泛的适用性
DOI:
10.1007/s00285-017-1141-6
复制
发表时间:
2018
影响因子:
1.9
通讯作者:
Ermentrout, Bard
中科院分区:
文献类型:
--
作者:
Wilson, Dan;Ermentrout, Bard
The applicability of phase models is generally limited by the constraint that the dynamics of a perturbed oscillator must stay near its underlying periodic orbit. Consequently, external perturbations must be sufficiently weak so that these assumptions remain valid. Using the notion of isostables of periodic orbits to provide a simplified coordinate system from which to understand the dynamics transverse to a periodic orbit, we devise a strategy to correct for changing phase dynamics for locations away from the limit cycle. Consequently, these corrected phase dynamics allow for perturbations of larger magnitude without invalidating the underlying assumptions of the reduction. The proposed reduction strategy yields a closed set of equations and can be applied to periodic orbits embedded in arbitrarily high dimensional spaces. We illustrate the utility of this strategy in two models with biological relevance. In the first application, we find that an optimal control strategy for modifying the period of oscillation can be improved with the corrected phase reduction. In the second, the corrected phase reduced dynamics are used to understand adaptation and memory effects resulting from past perturbations.
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DOI:
10.1137/090777244
发表时间:
2010-11
期刊:
SIAM J. Appl. Dyn. Syst.
影响因子:
--
作者:
H. Osinga;J. Moehlis
通讯作者:
H. Osinga;J. Moehlis
影响因子:
3.4
作者:
Dan Wilson;J. Moehlis
通讯作者:
J. Moehlis
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
A. Mauroy;I. Mezić;J. Moehlis
通讯作者:
J. Moehlis
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
G. Stephenson;P. Radmore
通讯作者:
P. Radmore
DOI:
10.1103/physreve.92.012910
发表时间:
2015-03
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Kestutis Pyragas;V. Novičenko
通讯作者:
Kestutis Pyragas;V. Novičenko