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arXiv 1301.5045cs.SC
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二元有理函数创造性伸缩的复杂性

Complexity of Creative Telescoping for Bivariate Rational Functions

Alin Bostan, Shaoshi Chen, Frédéric Chyzak, Ziming Li

摘要:

在这项工作中发起的长期目标是获得快速的算法和实现明确的集成在Almkvist和Zeilberger的框架(差分)创造性的伸缩。我们的复杂性驱动的方法是获得严格的程度上的各种表达式的方法。为了使问题更容易处理,我们限制到二元有理函数。通过考虑这类受约束的输入,我们能够将创造性伸缩的一般方法与著名的Hermite约化相结合。然后,我们使用我们的新方法来计算从组合所产生的有理幂级数的对角线。

英文摘要:

The long-term goal initiated in this work is to obtain fast algorithms and implementations for definite integration in Almkvist and Zeilberger's framework of (differential) creative telescoping. Our complexity-driven approach is to obtain tight degree bounds on the various expressions involved in the method. To make the problem more tractable, we restrict to bivariate rational functions. By considering this constrained class of inputs, we are able to blend the general method of creative telescoping with the well-known Hermite reduction. We then use our new method to compute diagonals of rational power series arising from combinatorics.

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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