compositions and Words

Combinatorial Properties of Integer Compositions and Words, Catalan and Motzkin words.

2025

Flattened Catalan words

with J.L. Baril and P. E. Harris.Bulletin of the Institute of Combinatorics and Its Applications 104 (2025), 51--79. (pdf, web)

Arndt compositions with restricted parts, palindromes, and colored variants

with M. L. Nadji, M. Ahmia, and D. Checa*Journal of Integer Sequences, 28 (2025), Article 25.3.6. (pdf, web)
2024

Arndt Compositions: A generating functions approach

with D. Checa*.INTEGERS, (2024), #A35. (pdf, web)

Exterior corners on bargraphs of Motzkin words

with T. Mansour.Springer Proceedings in Mathematics & Statistics, 403 (2024). Combinatorics, Graph Theory and Computing SEICCGTC 2021, Boca Raton, USA, March 8-12, Vol 448, (2024). (web)
2023

Enumeration of r-smooth words over a finite alphabet

with T. Mansour and D. Villamizar. Discrete Mathematics Letters. (11) (2023), 68-75. (web, pdf)
2022

Palindromic and colored superdiagonal compositions

with J. L. Mantilla* and W. Olaya-León. Revista Colombiana de Matemáticas 56(2) (2022), 133-143. (pdf, web)

Polyominoes and graphs built from Fibonacci words

with S. Kirgizov. The Fibonacci Quarterly (Proceedings of the 20th International Conference on Fibonacci Numbers and Their Applications, University of Sarajevo July 25 - 29, 2022) 60(5) (2022), 196-211 (web, pdf)
2021

n-Color palindromic compositions with restricted subscripts

with J. Bravo, J. L. Herrera, and M. Shattuck. Proceedings Mathematical Sciencies (Springer). 131(9) (2021), 1–13. (web)
2019

Some new restricted n-color composition functions

with J. R. Acosta*, Y. Caicedo, J. P. Poveda*, and M. ShattuckJournal of Integer Sequences, 22 (2019), Article 19.6.4. (web, pdf)

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