The variance and the asymptotic distribution of the length of longest k-alternating subsequences

被引：0

作者：

Ciceksiz, Recep Altar ^{[1
]}

Demirci, Yunus Emre ^{[2
]}

Islak, Umit ^{[3
]}

机构：

[1] Umea Univ, Dept Math, Umea, Sweden

[2] Queens Univ, Dept Math & Stat, Kingston, ON, Canada

[3] Bogazici Univ, Dept Math, Istanbul, Turkiye

来源：

DISCRETE MATHEMATICS AND THEORETICAL COMPUTER SCIENCE | 2023年 / 25卷 / 01期

关键词：

Alternating subsequences; k-alternating subsequences; Peak; central limit theorem; SUMS;

D O I：

10.46298/DMTCS.10296

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

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.

引用

页数：9

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