Validated Numerical Approximation of Stable Manifolds for Parabolic Partial Differential Equations
Validated Numerical Approximation of Stable Manifolds for Parabolic Partial Differential Equations
复制标题
抛物型偏微分方程稳定流形的验证数值逼近
DOI:
10.1007/s10884-022-10146-1
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发表时间:
2022
影响因子:
1.3
通讯作者:
James, J. D.
中科院分区:
文献类型:
--
作者:
Berg, Jan Bouwe;Jaquette, Jonathan;James, J. D.
This paper develops validated computational methods for studying infinite dimensional stable manifolds at equilibrium solutions of parabolic PDEs, synthesizing disparate errors resulting from numerical approximation. To construct our approximation, we decompose the stable manifold into three components: a finite dimensional slow component, a fast-but-finite dimensional component, and a strongly contracting infinite dimensional “tail”. We employ the parameterization method in a finite dimensional projection to approximate the slow-stable manifold, as well as the attached finite dimensional invariant vector bundles. This approximation provides a change of coordinates which largely removes the nonlinear terms in the slow stable directions. In this adapted coordinate system we apply the Lyapunov-Perron method, resulting in mathematically rigorous bounds on the approximation errors. As a result, we obtain significantly sharper bounds than would be obtained using only the linear approximation given by the eigendirections. As a concrete example we illustrate the technique for a 1D Swift-Hohenberg equation.
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影响因子:
2.1
作者:
J. Cyranka;Thomas Wanner
通讯作者:
Thomas Wanner
影响因子:
3.7
作者:
M. Plum
通讯作者:
M. Plum
DOI:
10.2991/978-94-6239-003-4
发表时间:
2013-08
期刊:
--
影响因子:
--
作者:
J. Eldering
通讯作者:
J. Eldering
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
M. Nakao
通讯作者:
M. Nakao
DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
O. Lanford
通讯作者:
O. Lanford