2008/11/30 by Tomas Johnson, Warwick Tucker
Mathematics · Physics and Astronomy · #Advanced Differential Equations and Dynamical Systems #Algorithm #Applied mathematics #Computation #Convergence (economics) #Geometry #Invariant (physics) #Mathematical analysis #Mathematical optimization #Mathematical physics #Mathematics #Numerical methods for differential equations #Pure mathematics #Quantum chaos and dynamical systems #Saddle #Saddle point #Taylor series #math.DS #msc:34C20 #msc:37D10 #msc:37M99 #msc:65G20
paper · pdf · doi:10.1007/s12346-011-0040-2
published as Qualitative Theory of Dynamical Systems 10(1):107-121 (2011)
arxiv created 2010/01/24 · openalex publication_date 2011/02/01 · arxiv updated 2011/03/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.