On the ranks of configurations on the complete graph

We consider the parameter rank introduced for graph configurations by M. Baker and S. Norine. We focus on complete graphs and obtain an efficient algorithm to determine the rank for these graphs. The analysis of this algorithm leads to the definition of a parameter on Dyck words, which we call prera...

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Main Authors: Robert Cori, Yvan Le Borgne
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/2332/pdf
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author Robert Cori
Yvan Le Borgne
author_facet Robert Cori
Yvan Le Borgne
author_sort Robert Cori
collection DOAJ
description We consider the parameter rank introduced for graph configurations by M. Baker and S. Norine. We focus on complete graphs and obtain an efficient algorithm to determine the rank for these graphs. The analysis of this algorithm leads to the definition of a parameter on Dyck words, which we call prerank. We prove that the distribution of area and prerank on Dyck words of given length $2n$ leads to a polynomial with variables $q,t$ which is symmetric in these variables. This polynomial is different from the $q,t-$Catalan polynomial studied by A. Garsia, J. Haglund and M. Haiman.
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spelling doaj.art-26f63d4bb4b240038ff0575a9083a6ed2024-03-07T14:52:36ZengDiscrete Mathematics & Theoretical Computer ScienceDiscrete Mathematics & Theoretical Computer Science1365-80502013-01-01DMTCS Proceedings vol. AS,...Proceedings10.46298/dmtcs.23322332On the ranks of configurations on the complete graphRobert Cori0Yvan Le Borgne1Laboratoire Bordelais de Recherche en InformatiqueLaboratoire Bordelais de Recherche en InformatiqueWe consider the parameter rank introduced for graph configurations by M. Baker and S. Norine. We focus on complete graphs and obtain an efficient algorithm to determine the rank for these graphs. The analysis of this algorithm leads to the definition of a parameter on Dyck words, which we call prerank. We prove that the distribution of area and prerank on Dyck words of given length $2n$ leads to a polynomial with variables $q,t$ which is symmetric in these variables. This polynomial is different from the $q,t-$Catalan polynomial studied by A. Garsia, J. Haglund and M. Haiman.https://dmtcs.episciences.org/2332/pdfrankriemann-roch for graphscomplete graphsdyck words[info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
spellingShingle Robert Cori
Yvan Le Borgne
On the ranks of configurations on the complete graph
Discrete Mathematics & Theoretical Computer Science
rank
riemann-roch for graphs
complete graphs
dyck words
[info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
title On the ranks of configurations on the complete graph
title_full On the ranks of configurations on the complete graph
title_fullStr On the ranks of configurations on the complete graph
title_full_unstemmed On the ranks of configurations on the complete graph
title_short On the ranks of configurations on the complete graph
title_sort on the ranks of configurations on the complete graph
topic rank
riemann-roch for graphs
complete graphs
dyck words
[info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
url https://dmtcs.episciences.org/2332/pdf
work_keys_str_mv AT robertcori ontheranksofconfigurationsonthecompletegraph
AT yvanleborgne ontheranksofconfigurationsonthecompletegraph