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arXiv 2405.00529math.NAcs.NA
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用于求解Gelfand-Levitan-Marchenko方程的高阶块Toeplitz内镶边方法

High-Order Block Toeplitz Inner-Bordering method for solving the Gelfand-Levitan-Marchenko equation

Sergey Medvedev, Irina Vaseva, Mikhail Fedoruk

AI总结:

本文提出一种基于块Toeplitz内镶边、Gregory求积公式和Woodbury公式的高精度算法,用于快速求解Gelfand-Levitan-Marchenko方程。

摘要:

我们提出了一种用于求解Gelfand-Levitan-Marchenko方程的高精度算法。该算法基于Levinson型Toeplitz内镶边算法的分块版本。为了近似积分,我们使用高精度的单边和双边Gregory求积公式。同时,我们利用Woodbury公式构造计算算法。这使得可以利用矩阵的近似Toeplitz结构进行快速计算。

英文摘要:

We propose a high precision algorithm for solving the Gelfand-Levitan-Marchenko equation. The algorithm is based on the block version of the Toeplitz Inner-Bordering algorithm of Levinson's type. To approximate integrals, we use the high-precision one-sided and two-sided Gregory quadrature formulas. Also we use the Woodbury formula to construct a computational algorithm. This makes it possible to use the almost Toeplitz structure of the matrices for the fast calculations.

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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