Helmut Prodinger

collaborators

3 papers

math.GM2026

Fibonacci numbers along residue classes and convolutions

Helmut Prodinger

The sequence $F_{d n + h}$ and its convolutions have (for $h = 0$ ) been studied in a recent paper at the arxiv [arXiv:2603.08636]. The instance with general $h$ is more involved and use…

math.CO2025

Horton-Strahler numbers for binary butterfly trees: exact analysis

Helmut Prodinger

Peca suggested in a recent paper on the arxiv to consider binary butterfly trees and their Horton-Strahler numbers. The trees are obtained by glueing two binary trees together in a…

math.CO2024

k-non-crossing trees and edge statistics modulo k

Helmut Prodinger

Instead of $k$ -Dyck paths we consider the equivalent concept of $k$ -non-crossing trees. This is our preferred approach relative to down-step statistics modulo $k$ (first studied by…