Patterns and Parts in Compositions: Enumeration and Bijection

Hua Wang, Brian Hopkins, Mark Shattuck, Andrew V. Sills, Thotsaporn Thanatipanonda

Research output: Contribution to conferencePresentation

Abstract

A composition of an integer n is a tuple of positive integers that sum up to n. Our study began with the empirical observation that, in the set of all compositions of n, the total number of odd parts equals the total number of runs. We explore proofs of this fact through combinatorial as well as generating function approaches. From there we show more general results relating the number of parts in a given residue class modulo m to various subword patterns among all compositions of n.

Original languageAmerican English
StatePublished - Oct 6 2016
EventThe Integers Conference -
Duration: Oct 6 2016 → …

Conference

ConferenceThe Integers Conference
Period10/6/16 → …

Disciplines

  • Mathematics
  • Physical Sciences and Mathematics

Keywords

  • Bijection
  • Compositions
  • Enumeration
  • Parts
  • Patterns

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