Abstract
In this note, we consider several statistics on 2-compositions. We show that there is a bijection between the set of 2-compositions and a set of bargraphs, introduced in this note, named 2-bargraphs. As we focus on the statistic per–the perimeter of the given 2-bargraph, we find the corresponding generating function. We also find an explicit formula for the total length of the perimeter over all 2-bargraphs with n-cells.
Original language | English |
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Pages (from-to) | 1639-1644 |
Number of pages | 6 |
Journal | Quaestiones Mathematicae |
Volume | 43 |
Issue number | 11 |
DOIs | |
State | Published - 2020 |
Bibliographical note
Publisher Copyright:© 2019 NISC (Pty) Ltd.
Keywords
- 2-compositions
- Bargraphs
- perimeter
ASJC Scopus subject areas
- Mathematics (miscellaneous)