arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.05020math.NAcs.NA
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Hermite细分格式的分析与收敛性

Analysis and convergence of Hermite subdivision schemes

Bin Han

AI总结:

本文通过研究向量细分算子并建立Hermite细分格式、向量级联算法与可细化向量函数之间的关系,解决了Hermite掩模刻画、矩阵值掩模因式分解及收敛性等关键问题。

摘要:

Hermite插值性质在应用数学与计算数学中备受期待。Hermite细分格式与向量细分格式在计算机辅助几何设计(CAGD)中用于生成细分曲线,并在计算数学中用于构造Hermite小波以数值求解偏微分方程,因而受到广泛关注。与已被充分研究的标量细分格式不同,Hermite细分格式和向量细分格式采用矩阵值掩模和向量输入数据,这使得其分析远比标量情形更加复杂和困难。尽管近年来Hermite细分格式取得了一些进展,但若干关键问题仍未解决,例如Hermite掩模的刻画、矩阵值掩模的因式分解以及Hermite细分格式的收敛性。本文将通过研究作用于向量多项式的向量细分算子,并建立Hermite细分格式、向量级联算法与可细化向量函数之间的关系,来研究Hermite细分格式。这一方法使我们能够解决Hermite细分格式中的若干关键问题,包括Hermite掩模的刻画、矩阵值掩模的因式分解以及Hermite细分格式的收敛性。

英文摘要:

Hermite interpolation property is desired in applied and computational mathematics. Hermite and vector subdivision schemes are of interest in CAGD for generating subdivision curves and in computational mathematics for building Hermite wavelets to numerically solve partial differential equations. In contrast to well-studied scalar subdivision schemes, Hermite and vector subdivision schemes employ matrix-valued masks and vector input data, which make their analysis much more complicated and difficult than their scalar counterparts. Despite recent progresses on Hermite subdivision schemes, several key questions still remain unsolved, for example, characterization of Hermite masks, factorization of matrix-valued masks, and convergence of Hermite subdivision schemes. In this paper, we shall study Hermite subdivision schemes through investigating vector subdivision operators acting on vector polynomials and establishing the relations among Hermite subdivision schemes, vector cascade algorithms and refinable vector functions. This approach allows us to resolve several key problems on Hermite subdivision schemes including characterization of Hermite masks, factorization of matrix-valued masks, and convergence of Hermite subdivision schemes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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