The first ascent of size $d$ or more in compositions

A composition of a positive integer $n$ is a finite sequence of positive integers $a_1, a_2, \ldots, a_k$ such that $a_1+a_2+ \cdots +a_k=n$. Let $d$ be a fixed nonnegative integer. We say that we have an ascent of size $d$ or more at position $i$, if $a_{i+1}\geq a_i+d$. We study the average positi...

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Main Authors: Charlotte Brennan, Arnold Knopfmacher
Format: Article
Language:English
Published: Discrete Mathematics & Theoretical Computer Science 2006-01-01
Series:Discrete Mathematics & Theoretical Computer Science
Subjects:
Online Access:https://dmtcs.episciences.org/3509/pdf
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author Charlotte Brennan
Arnold Knopfmacher
author_facet Charlotte Brennan
Arnold Knopfmacher
author_sort Charlotte Brennan
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description A composition of a positive integer $n$ is a finite sequence of positive integers $a_1, a_2, \ldots, a_k$ such that $a_1+a_2+ \cdots +a_k=n$. Let $d$ be a fixed nonnegative integer. We say that we have an ascent of size $d$ or more at position $i$, if $a_{i+1}\geq a_i+d$. We study the average position, initial height and end height of the first ascent of size $d$ or more in compositions of $n$ as $n \to \infty$.
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spelling doaj.art-538577127383427abcc6de6aef4e3d582024-03-07T14:34:36ZengDiscrete Mathematics & Theoretical Computer ScienceDiscrete Mathematics & Theoretical Computer Science1365-80502006-01-01DMTCS Proceedings vol. AG,...Proceedings10.46298/dmtcs.35093509The first ascent of size $d$ or more in compositionsCharlotte Brennan0Arnold Knopfmacher1The John Knopfmacher Centre for Applicable Analysis and Number Theory [Johannesburg]The John Knopfmacher Centre for Applicable Analysis and Number Theory [Johannesburg]A composition of a positive integer $n$ is a finite sequence of positive integers $a_1, a_2, \ldots, a_k$ such that $a_1+a_2+ \cdots +a_k=n$. Let $d$ be a fixed nonnegative integer. We say that we have an ascent of size $d$ or more at position $i$, if $a_{i+1}\geq a_i+d$. We study the average position, initial height and end height of the first ascent of size $d$ or more in compositions of $n$ as $n \to \infty$.https://dmtcs.episciences.org/3509/pdfcompositionsascentsgenerating functions[info.info-ds] computer science [cs]/data structures and algorithms [cs.ds][info.info-dm] computer science [cs]/discrete mathematics [cs.dm][math.math-co] mathematics [math]/combinatorics [math.co]
spellingShingle Charlotte Brennan
Arnold Knopfmacher
The first ascent of size $d$ or more in compositions
Discrete Mathematics & Theoretical Computer Science
compositions
ascents
generating functions
[info.info-ds] computer science [cs]/data structures and algorithms [cs.ds]
[info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
[math.math-co] mathematics [math]/combinatorics [math.co]
title The first ascent of size $d$ or more in compositions
title_full The first ascent of size $d$ or more in compositions
title_fullStr The first ascent of size $d$ or more in compositions
title_full_unstemmed The first ascent of size $d$ or more in compositions
title_short The first ascent of size $d$ or more in compositions
title_sort first ascent of size d or more in compositions
topic compositions
ascents
generating functions
[info.info-ds] computer science [cs]/data structures and algorithms [cs.ds]
[info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
[math.math-co] mathematics [math]/combinatorics [math.co]
url https://dmtcs.episciences.org/3509/pdf
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