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Main Authors: Zhang, Bingwei, Yap, Chee
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2604.19068
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author Zhang, Bingwei
Yap, Chee
author_facet Zhang, Bingwei
Yap, Chee
contents We recently introduced a novel architecture for the design of validated IVP algorithms. This architecture forms the basis of our complete validated algorithm for IVP. A key subroutine in our algorithm is the \textbf{Euler Tube}: it gave a technique for refining end- and full-enclosures and is also key to deriving a complexity bound of our IVP solver. In this paper, we generalize it to \textbf{Taylor Tube} of degree $p\ge 1$. As expected, higher-degree Taylor Tubes improve accuracy. But surprisingly, our experiments show that it can also lead to an overall speedup when combined with bisection.
format Preprint
id arxiv_https___arxiv_org_abs_2604_19068
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Taylor Tube Method for Validated IVP
Zhang, Bingwei
Yap, Chee
Numerical Analysis
We recently introduced a novel architecture for the design of validated IVP algorithms. This architecture forms the basis of our complete validated algorithm for IVP. A key subroutine in our algorithm is the \textbf{Euler Tube}: it gave a technique for refining end- and full-enclosures and is also key to deriving a complexity bound of our IVP solver. In this paper, we generalize it to \textbf{Taylor Tube} of degree $p\ge 1$. As expected, higher-degree Taylor Tubes improve accuracy. But surprisingly, our experiments show that it can also lead to an overall speedup when combined with bisection.
title Taylor Tube Method for Validated IVP
topic Numerical Analysis
url https://arxiv.org/abs/2604.19068