Shapiro, Louis and Sprugnoli, Renzo and Barry, Paul and Cheon, Gi Sang and He, Tian Xiao and Merlini, Donatella and Wang, Weiping (2022) Combinatorial Sums and Inversions. In: Springer Monographs in Mathematics :. Springer Monographs in Mathematics . Springer Science and Business Media Deutschland GmbH, pp. 101-122.
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Traditional methods used for solving combinatorial sums (see, e.g., J. Riordan [18] or L. Comtet [1]) are used in R. L. Graham, D. E. Knuth, and O. Patashnik [8], where it is shown how to use the rules of binomial coefficients, Stirling numbers, and so on, for computing combinatorial sums. G. P. Egorychev [3] developed the method known as integral representation of sums. Gosper’s method [7] and the Petkovšek-Wilf-Zeilberger approach [17, 22, 23] are other well-known methods which nowadays are embodied in every system for computer algebra. An interesting method for evaluating combinatorial sums has emerged in the Riordan arrays concept, with significant early contributions due to R. Sprugnoli [19, 20]. As a matter of fact, Riordan arrays correspond to a special application of the method of coefficients that allows one to compute a vast number of combinatorial sums and inversions in a uniform and often very simple way. In particular, R. Sprugnoli showed how to prove with the Riordan array approach almost all identities in H. W. Gould’s book [5]. In this chapter the computation of combinatorial sums and inversions with Riordan arrays is presented in detail. Many other applications of the method can be found in [9, 11–16], while other characteristic combinatorial identities in several parameters have been recently studied with a Riordan array approach by A. Luzón, D. Merlini, M. A. Morón and R. Sprugnoli [10].
Item Type: | Book Section |
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Additional Information: | Publisher Copyright: © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG. |
Uncontrolled Keywords: | /dk/atira/pure/subjectarea/asjc/2600 |
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Depositing User: | Admin SSL |
Date Deposited: | 19 Oct 2022 23:18 |
Last Modified: | 07 Jun 2023 18:40 |
URI: | http://repository-testing.wit.ie/id/eprint/5243 |
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