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- W4302526500 abstract "A summation framework is developed that enhances Karr's difference field approach. It covers not only indefinite nested sums and products in terms of transcendental extensions, but it can treat, e.g., nested products defined over roots of unity. The theory of the so-called $RPiSigma^*$-extensions is supplemented by algorithms that support the construction of such difference rings automatically and that assist in the task to tackle symbolic summation problems. Algorithms are presented that solve parameterized telescoping equations, and more generally parameterized first-order difference equations, in the given difference ring. As a consequence, one obtains algorithms for the summation paradigms of telescoping and Zeilberger's creative telescoping. With this difference ring theory one obtains a rigorous summation machinery that has been applied to numerous challenging problems coming, e.g., from combinatorics and particle physics." @default.
- W4302526500 created "2022-10-06" @default.
- W4302526500 creator A5012740956 @default.
- W4302526500 date "2014-08-12" @default.
- W4302526500 modified "2023-10-16" @default.
- W4302526500 title "A Difference Ring Theory for Symbolic Summation" @default.
- W4302526500 doi "https://doi.org/10.48550/arxiv.1408.2776" @default.
- W4302526500 hasPublicationYear "2014" @default.
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