The Variance and the Asymptotic Distribution of the Length of Longest $k$-alternating Subsequences

Fuente: arXiv
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Main Authors: Çiçeksiz, Recep Altar, Demirci, Yunus Emre, Işlak, Ümit
Format: Preprint
Published: 2021
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author Çiçeksiz, Recep Altar
Demirci, Yunus Emre
Işlak, Ümit
author_facet Çiçeksiz, Recep Altar
Demirci, Yunus Emre
Işlak, Ümit
contents We obtain an explicit formula for the variance of the number of $k$-peaks in a uniformly random permutation. This is then used to obtain an asymptotic formula for the variance of the length of longest $k$-alternating subsequence in random permutations. Also a central limit is proved for the latter statistic.
format Preprint
id arxiv_https___arxiv_org_abs_2107_12459
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle The Variance and the Asymptotic Distribution of the Length of Longest $k$-alternating Subsequences
Çiçeksiz, Recep Altar
Demirci, Yunus Emre
Işlak, Ümit
Probability
Combinatorics
05A05 (Primary), 60F05 (Secondary)
We obtain an explicit formula for the variance of the number of $k$-peaks in a uniformly random permutation. This is then used to obtain an asymptotic formula for the variance of the length of longest $k$-alternating subsequence in random permutations. Also a central limit is proved for the latter statistic.
title The Variance and the Asymptotic Distribution of the Length of Longest $k$-alternating Subsequences
topic Probability
Combinatorics
05A05 (Primary), 60F05 (Secondary)
url https://arxiv.org/abs/2107.12459