Sum of elements preceding records in set partitions

Fuente: arXiv
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Main Authors: Asakly, Walaa, Kezil, Noor
Format: Preprint
Published: 2025
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author Asakly, Walaa
Kezil, Noor
author_facet Asakly, Walaa
Kezil, Noor
contents In this paper, we aim to derive an explicit formula for the total number of elements preceding records over all set partitions of $[n]$ with exactly $k$ blocks, as well as an asymptotic estimate for the total sum of elements preceding records in all set partitions of $[n]$, expressed in terms of Bell numbers. To achieve this, we analyze the generating function that enumerates set partitions of $[n]$ according to this statistic, which we denote by $\sumelements$.
format Preprint
id arxiv_https___arxiv_org_abs_2510_06521
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Sum of elements preceding records in set partitions
Asakly, Walaa
Kezil, Noor
Combinatorics
In this paper, we aim to derive an explicit formula for the total number of elements preceding records over all set partitions of $[n]$ with exactly $k$ blocks, as well as an asymptotic estimate for the total sum of elements preceding records in all set partitions of $[n]$, expressed in terms of Bell numbers. To achieve this, we analyze the generating function that enumerates set partitions of $[n]$ according to this statistic, which we denote by $\sumelements$.
title Sum of elements preceding records in set partitions
topic Combinatorics
url https://arxiv.org/abs/2510.06521