Asymptotic distribution of fixed points of pattern-avoiding involutions

For a variety of pattern-avoiding classes, we describe the limiting distribution for the number of fixed points for involutions chosen uniformly at random from that class. In particular we consider monotone patterns of arbitrary length as well as all patterns of length 3. For monotone patterns we ut...

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Main Authors: Samuel Miner, Douglas Rizzolo, Erik Slivken
Format: Article
Language:English
Published: Discrete Mathematics & Theoretical Computer Science 2017-12-01
Series:Discrete Mathematics & Theoretical Computer Science
Subjects:
Online Access:https://dmtcs.episciences.org/3658/pdf
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author Samuel Miner
Douglas Rizzolo
Erik Slivken
author_facet Samuel Miner
Douglas Rizzolo
Erik Slivken
author_sort Samuel Miner
collection DOAJ
description For a variety of pattern-avoiding classes, we describe the limiting distribution for the number of fixed points for involutions chosen uniformly at random from that class. In particular we consider monotone patterns of arbitrary length as well as all patterns of length 3. For monotone patterns we utilize the connection with standard Young tableaux with at most $k$ rows and involutions avoiding a monotone pattern of length $k$. For every pattern of length 3 we give the bivariate generating function with respect to fixed points for the involutions that avoid that pattern, and where applicable apply tools from analytic combinatorics to extract information about the limiting distribution from the generating function. Many well-known distributions appear.
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spelling doaj.art-5c6cad455a3b41c49c1cd9328b250ec12024-03-07T15:33:33ZengDiscrete Mathematics & Theoretical Computer ScienceDiscrete Mathematics & Theoretical Computer Science1365-80502017-12-01Vol. 19 no. 2, Permutation...Permutation Patterns10.23638/DMTCS-19-2-53658Asymptotic distribution of fixed points of pattern-avoiding involutionsSamuel MinerDouglas RizzoloErik SlivkenFor a variety of pattern-avoiding classes, we describe the limiting distribution for the number of fixed points for involutions chosen uniformly at random from that class. In particular we consider monotone patterns of arbitrary length as well as all patterns of length 3. For monotone patterns we utilize the connection with standard Young tableaux with at most $k$ rows and involutions avoiding a monotone pattern of length $k$. For every pattern of length 3 we give the bivariate generating function with respect to fixed points for the involutions that avoid that pattern, and where applicable apply tools from analytic combinatorics to extract information about the limiting distribution from the generating function. Many well-known distributions appear.https://dmtcs.episciences.org/3658/pdfmathematics - combinatoricsmathematics - probability60c05
spellingShingle Samuel Miner
Douglas Rizzolo
Erik Slivken
Asymptotic distribution of fixed points of pattern-avoiding involutions
Discrete Mathematics & Theoretical Computer Science
mathematics - combinatorics
mathematics - probability
60c05
title Asymptotic distribution of fixed points of pattern-avoiding involutions
title_full Asymptotic distribution of fixed points of pattern-avoiding involutions
title_fullStr Asymptotic distribution of fixed points of pattern-avoiding involutions
title_full_unstemmed Asymptotic distribution of fixed points of pattern-avoiding involutions
title_short Asymptotic distribution of fixed points of pattern-avoiding involutions
title_sort asymptotic distribution of fixed points of pattern avoiding involutions
topic mathematics - combinatorics
mathematics - probability
60c05
url https://dmtcs.episciences.org/3658/pdf
work_keys_str_mv AT samuelminer asymptoticdistributionoffixedpointsofpatternavoidinginvolutions
AT douglasrizzolo asymptoticdistributionoffixedpointsofpatternavoidinginvolutions
AT erikslivken asymptoticdistributionoffixedpointsofpatternavoidinginvolutions