Minimal Factorizations of Permutations into Star Transpositions

J. Irving; A. Rattan

doi:10.46298/dmtcs.3595

J. Irving ; A. Rattan - Minimal Factorizations of Permutations into Star Transpositions

dmtcs:3595 - Discrete Mathematics & Theoretical Computer Science, January 1, 2008, DMTCS Proceedings vol. AJ, 20th Annual International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2008) - https://doi.org/10.46298/dmtcs.3595

Minimal Factorizations of Permutations into Star TranspositionsConference paper

Authors: J. Irving ¹; A. Rattan ²

1 Department of Mathematics and Computing Science [Halifax]
2 Department of Mathematics [Cambridge]

We give a compact expression for the number of factorizations of any permutation into a minimal number of transpositions of the form $(1 i)$ . Our result generalizes earlier work of Pak ( $\textit{Reduced decompositions of permutations in terms of star transpositions, generalized catalan numbers and k-ary trees}$ , Discrete Math. $\textbf{204}$ :329―335, 1999) in which substantial restrictions were placed on the permutation being factored.

https://doi.org/10.46298/dmtcs.3595

Source: HAL:hal-01185128v1

Volume: DMTCS Proceedings vol. AJ, 20th Annual International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2008)

Section: Proceedings

Published on: January 1, 2008

Imported on: May 10, 2017

Keywords: factorizations,permutations,star transpositions,symmetric group,[MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO],[INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM]

Funding:

Source : OpenAIRE Graph

Funder: Natural Sciences and Engineering Research Council of Canada

Bibliographic References

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