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Discrete Mathematics & Theoretical Computer Science
Article . 2000 . Peer-reviewed
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Article . 2000
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Article . 2000
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Article . 2000
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Avoiding maximal parabolic subgroups of S_k

Avoiding maximal parabolic subgroups of \(S_k\)
Authors: Mansour, Toufik; Vainshtein, Alek;

Avoiding maximal parabolic subgroups of S_k

Abstract

We find an explicit expression for the generating function of the number of permutations in S_n avoiding a subgroup of S_k generated by all but one simple transpositions. The generating function turns out to be rational, and its denominator is a rook polynomial for a rectangular board.

Related Organizations
Keywords

permutations, Exact enumeration problems, generating functions, [info.info-dm] computer science [cs]/discrete mathematics [cs.dm], rook polynomial, parabolic subgroups, permutation, 05A05, QA1-939, FOS: Mathematics, Mathematics - Combinatorics, Laguerre polynomials, Symmetric groups, laguerre polynomials, 05A05; 05A15; 05E35; 33C45, rook polynomials, 33C45, forbidden patterns, [INFO.INFO-DM] Computer Science [cs]/Discrete Mathematics [cs.DM], 05E35, generating function, Combinatorics (math.CO), 05A15, Mathematics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green
Published in a Diamond OA journal