DOAJ Open Access 2023

Inversion sequences avoiding 021 and another pattern of length four

Toufik Mansour Gökhan Yıldırım

Lihat Sumber DOI

Abstrak

We study the enumeration of inversion sequences that avoid the pattern 021 and another pattern of length four. We determine the generating trees for all possible pattern pairs and compute the corresponding generating functions. We introduce the concept of dregular generating trees and conjecture that for any 021-avoiding pattern τ , the generating tree T ({021, τ }) is d-regular for some integer d.

Topik & Kata Kunci

Mathematics

Penulis (2)

Toufik Mansour

Gökhan Yıldırım

Format Sitasi

APA MLA BibTeX

Mansour, T., Yıldırım, G. (2023). Inversion sequences avoiding 021 and another pattern of length four. https://doi.org/10.46298/dmtcs.10444

Akses Cepat

Lihat di Sumber doi.org/10.46298/dmtcs.10444

Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.46298/dmtcs.10444
Akses: Open Access ✓