A bijection on Dyck paths and its consequences

A bijection between ordered trees and 2-Motzkin paths and its many consequences

Discrete Mathematics

On the diagram of 132-avoiding permutations

European Journal of Combinatorics

An identity involving Narayana numbers

European Journal of Combinatorics

Methodological Review: Unsupervised grammar induction and similarity retrieval in medical language processing using the Deterministic Dynamic Associative Memory (DDAM) model

Journal of Biomedical Informatics

Schur positivity and the q-log-convexity of the Narayana polynomials

Journal of Algebraic Combinatorics: An International Journal

Visits to Level r by Dyck Paths

Fundamenta Informaticae - Lattice Path Combinatorics and Applications