Amy M. Fu

collaborators

2 papers

math.CO2026

A Grammatical Calculus for the Ramanujan Polynomials

William Y. C. Chen, Amy M. Fu, Elena L. Wang

The Ramanujan polynomials arise in three intertwined contexts. As remarked by BerndtEvans-Wilson, no combinatorial perspective seems to be alluded to in the original definition of…

math.CO2025

Increasing Binary Trees and the $(I^\pm, I^^{2})$ -Eulerian Polynomials

William Y. C. Chen, Amy M. Fu

In light of the grammar given by Ji for the $(I^\pm, I^^{2})$ -Eulerian polynomials introduced by Carlitz and Scoville, we provide a labeling scheme for increasing binary trees. In this set…

A Grammatical Calculus for the Ramanujan Polynomials

Increasing Binary Trees and the (I^±,I^2)-Eulerian Polynomials

Increasing Binary Trees and the $(I^\pm, I^^{2})$ -Eulerian Polynomials