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arXiv 1805.03445cs.SC
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广义埃尔米特约简、创造性望远镜法与D有限函数的定积分

Generalized Hermite Reduction, Creative Telescoping and Definite Integration of D-Finite Functions

Alin Bostan, Frédéric Chyzak, Pierre Lairez, Bruno Salvy

AI总结:

本研究将经典埃尔米特约简推广到任意线性微分算子,开发高效算法,并将其应用于多参数D有限函数定积分的线性算子计算,推广了基于约简的创造性望远镜法。

摘要:

埃尔米特约简是符号积分中的经典算法工具,用于将给定有理函数分解为具有单极点的函数与另一有理函数的导数之和。我们将埃尔米特约简推广至任意线性微分算子(而非纯导数),并开发了该约简的高效算法。随后我们将广义埃尔米特约简应用于计算含多个连续或离散参数的D有限函数的单一定积分所满足的线性算子。所得算法是基于约简的创造性望远镜法的推广。

英文摘要:

Hermite reduction is a classical algorithmic tool in symbolic integration. It is used to decompose a given rational function as a sum of a function with simple poles and the derivative of another rational function. We extend Hermite reduction to arbitrary linear differential operators instead of the pure derivative, and develop efficient algorithms for this reduction. We then apply the generalized Hermite reduction to the computation of linear operators satisfied by single definite integrals of D-finite functions of several continuous or discrete parameters. The resulting algorithm is a generalization of reduction-based methods for creative telescoping.

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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