Permutation patterns, Stanley symmetric functions, and the Edelman-Greene correspondence

Generalizing the notion of a vexillary permutation, we introduce a filtration of $S_{\infty}$ by the number of Edelman-Greene tableaux of a permutation, and show that each filtration level is characterized by avoiding a finite set of patterns. In doing so, we show that if $w$ is a permutation contai...

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Main Authors: Sara Billey, Brendan Pawlowski
Format: Article
Language:English
Published: Discrete Mathematics & Theoretical Computer Science 2013-01-01
Series:Discrete Mathematics & Theoretical Computer Science
Subjects:
Online Access:https://dmtcs.episciences.org/12805/pdf
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author Sara Billey
Brendan Pawlowski
author_facet Sara Billey
Brendan Pawlowski
author_sort Sara Billey
collection DOAJ
description Generalizing the notion of a vexillary permutation, we introduce a filtration of $S_{\infty}$ by the number of Edelman-Greene tableaux of a permutation, and show that each filtration level is characterized by avoiding a finite set of patterns. In doing so, we show that if $w$ is a permutation containing $v$ as a pattern, then there is an injection from the set of Edelman-Greene tableaux of $v$ to the set of Edelman-Greene tableaux of $w$ which respects inclusion of shapes. We also consider the set of permutations whose Edelman-Greene tableaux have distinct shapes, and show that it is closed under taking patterns.
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spelling doaj.art-53a9dfb8249e4b38853d2517bb12f9f02024-03-07T14:52:36ZengDiscrete Mathematics & Theoretical Computer ScienceDiscrete Mathematics & Theoretical Computer Science1365-80502013-01-01DMTCS Proceedings vol. AS,...Proceedings10.46298/dmtcs.1280512805Permutation patterns, Stanley symmetric functions, and the Edelman-Greene correspondenceSara Billey0Brendan Pawlowski1Department of Mathematics [Seattle]Department of Mathematics [Seattle]Generalizing the notion of a vexillary permutation, we introduce a filtration of $S_{\infty}$ by the number of Edelman-Greene tableaux of a permutation, and show that each filtration level is characterized by avoiding a finite set of patterns. In doing so, we show that if $w$ is a permutation containing $v$ as a pattern, then there is an injection from the set of Edelman-Greene tableaux of $v$ to the set of Edelman-Greene tableaux of $w$ which respects inclusion of shapes. We also consider the set of permutations whose Edelman-Greene tableaux have distinct shapes, and show that it is closed under taking patterns.https://dmtcs.episciences.org/12805/pdfedelman-greene correspondencestanley symmetric functionsspecht modulespattern avoidance[info.info-dm]computer science [cs]/discrete mathematics [cs.dm]
spellingShingle Sara Billey
Brendan Pawlowski
Permutation patterns, Stanley symmetric functions, and the Edelman-Greene correspondence
Discrete Mathematics & Theoretical Computer Science
edelman-greene correspondence
stanley symmetric functions
specht modules
pattern avoidance
[info.info-dm]computer science [cs]/discrete mathematics [cs.dm]
title Permutation patterns, Stanley symmetric functions, and the Edelman-Greene correspondence
title_full Permutation patterns, Stanley symmetric functions, and the Edelman-Greene correspondence
title_fullStr Permutation patterns, Stanley symmetric functions, and the Edelman-Greene correspondence
title_full_unstemmed Permutation patterns, Stanley symmetric functions, and the Edelman-Greene correspondence
title_short Permutation patterns, Stanley symmetric functions, and the Edelman-Greene correspondence
title_sort permutation patterns stanley symmetric functions and the edelman greene correspondence
topic edelman-greene correspondence
stanley symmetric functions
specht modules
pattern avoidance
[info.info-dm]computer science [cs]/discrete mathematics [cs.dm]
url https://dmtcs.episciences.org/12805/pdf
work_keys_str_mv AT sarabilley permutationpatternsstanleysymmetricfunctionsandtheedelmangreenecorrespondence
AT brendanpawlowski permutationpatternsstanleysymmetricfunctionsandtheedelmangreenecorrespondence