关于参数化非共振不变流形收敛性的一个注记
A note on the convergence of parametrised non-resonant invariant manifolds
摘要:
不变流形的截断泰勒级数表示在数值计算中非常丰富。我们提出了一种后验方法来计算解析向量场鞍点的非共振局部不变流形的解析参数化的收敛半径和误差估计。这使我们能够获得局部外壳,以及存在性结果,为不变流形。
英文摘要:
Truncated Taylor series representations of invariant manifolds are abundant in numerical computations. We present an aposteriori method to compute the convergence radii and error estimates of analytic parametrisations of non-resonant local invariant manifolds of a saddle of an analytic vector field, from such a truncated series. This enables us to obtain local enclosures, as well as existence results, for the invariant manifolds.
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