English

Kac--Moody Fibonacci sequences

Number Theory 2026-01-06 v1 Combinatorics Quantum Algebra Representation Theory

Abstract

We summarize known results on how to generate an infinite family of integer sequences from the root lattices of rank 2 Kac--Moody algebras. We compute and tabulate the first twenty entries of a number of these sequences. This provides an overarching framework for a large class of Fibonacci-type integer sequences, evaluations of Chebyshev S and U-polynomials and others.

Keywords

Cite

@article{arxiv.2601.00958,
  title  = {Kac--Moody Fibonacci sequences},
  author = {Lisa Carbone and Pranav Shankar},
  journal= {arXiv preprint arXiv:2601.00958},
  year   = {2026}
}
R2 v1 2026-07-01T08:48:58.811Z