English

A graph theoretic encoding of Lucas sequences

Combinatorics 2015-01-05 v1

Abstract

Some well-known results of Prodinger and Tichy are that the number of independent sets in the nn-vertex path graph is Fn+2F_{n+2}, and that the number of independent sets in the nn-vertex cycle graph is LnL_n. We generalize these results by introducing new classes of graphs whose independent set structures encode the Lucas sequences of both the first and second kind. We then use this class of graphs to provide new combinatorial interpretations of the terms of Dickson polynomials of the first and second kind.

Keywords

Cite

@article{arxiv.1501.00061,
  title  = {A graph theoretic encoding of Lucas sequences},
  author = {James Alexander and Paul Hearding},
  journal= {arXiv preprint arXiv:1501.00061},
  year   = {2015}
}

Comments

To appear in Fibonacci Quarterly, 4 pages, 1 figure

R2 v1 2026-06-22T07:47:48.771Z