Rhombic alternative tableaux, assemblees of permutations, and the ASEP

In this paper, we introduce therhombic alternative tableaux, whose weight generating functions providecombinatorial formulae to compute the steady state probabilities of the two-species ASEP. In the ASEP, there aretwo species of particles, oneheavyand onelight, on a one-dimensional finite lattice wi...

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Main Authors: Olya Mandelshtam, Xavier Viennot
Format: Article
Language:English
Published: Discrete Mathematics & Theoretical Computer Science 2020-04-01
Series:Discrete Mathematics & Theoretical Computer Science
Subjects:
Online Access:https://dmtcs.episciences.org/6320/pdf
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author Olya Mandelshtam
Xavier Viennot
author_facet Olya Mandelshtam
Xavier Viennot
author_sort Olya Mandelshtam
collection DOAJ
description In this paper, we introduce therhombic alternative tableaux, whose weight generating functions providecombinatorial formulae to compute the steady state probabilities of the two-species ASEP. In the ASEP, there aretwo species of particles, oneheavyand onelight, on a one-dimensional finite lattice with open boundaries, and theparametersα,β, andqdescribe the hopping probabilities. The rhombic alternative tableaux are enumerated by theLah numbers, which also enumerate certainassembl ́ees of permutations. We describe a bijection between the rhombicalternative tableaux and these assembl ́ees. We also provide an insertion algorithm that gives a weight generatingfunction for the assemb ́ees. Combined, these results give a bijective proof for the weight generating function for therhombic alternative tableaux.
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spelling doaj.art-c065b8cea28148a9915238c2ef0878142024-03-07T14:55:21ZengDiscrete Mathematics & Theoretical Computer ScienceDiscrete Mathematics & Theoretical Computer Science1365-80502020-04-01DMTCS Proceedings, 28th...10.46298/dmtcs.63206320Rhombic alternative tableaux, assemblees of permutations, and the ASEPOlya Mandelshtam0Xavier Viennot1Department of Mathematics [Berkeley]Laboratoire Bordelais de Recherche en InformatiqueIn this paper, we introduce therhombic alternative tableaux, whose weight generating functions providecombinatorial formulae to compute the steady state probabilities of the two-species ASEP. In the ASEP, there aretwo species of particles, oneheavyand onelight, on a one-dimensional finite lattice with open boundaries, and theparametersα,β, andqdescribe the hopping probabilities. The rhombic alternative tableaux are enumerated by theLah numbers, which also enumerate certainassembl ́ees of permutations. We describe a bijection between the rhombicalternative tableaux and these assembl ́ees. We also provide an insertion algorithm that gives a weight generatingfunction for the assemb ́ees. Combined, these results give a bijective proof for the weight generating function for therhombic alternative tableaux.https://dmtcs.episciences.org/6320/pdf[math.math-co]mathematics [math]/combinatorics [math.co]
spellingShingle Olya Mandelshtam
Xavier Viennot
Rhombic alternative tableaux, assemblees of permutations, and the ASEP
Discrete Mathematics & Theoretical Computer Science
[math.math-co]mathematics [math]/combinatorics [math.co]
title Rhombic alternative tableaux, assemblees of permutations, and the ASEP
title_full Rhombic alternative tableaux, assemblees of permutations, and the ASEP
title_fullStr Rhombic alternative tableaux, assemblees of permutations, and the ASEP
title_full_unstemmed Rhombic alternative tableaux, assemblees of permutations, and the ASEP
title_short Rhombic alternative tableaux, assemblees of permutations, and the ASEP
title_sort rhombic alternative tableaux assemblees of permutations and the asep
topic [math.math-co]mathematics [math]/combinatorics [math.co]
url https://dmtcs.episciences.org/6320/pdf
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