Abstract
Integer compositions and related counting problems are a rich and ubiquitous topic in enumerative combinatorics. In this paper we explore the definition of symmetric and asymmetric peaks and valleys over compositions. In particular, we compute an explicit formula for the generating function for the number of integer compositions according to the number of parts, symmetric, and asymmetric peaks and valleys.
Original language | English |
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Article number | 04 |
Journal | Online Journal of Analytic Combinatorics |
Issue number | 17 |
DOIs | |
State | Published - 2022 |
Bibliographical note
Publisher Copyright:© 2022 Combinatorial Press. All rights reserved.
Keywords
- asymmetric peaks
- Compositions
- generating functions
- peaks
- symmetric peaks
ASJC Scopus subject areas
- Discrete Mathematics and Combinatorics