English

Multiple breaks of log-concavity in the independence polynomials of trees

Combinatorics 2025-11-04 v1

Abstract

We construct infinite families of trees whose independence polynomials violate log-concavity at an arbitrary number of indices. This affirmatively answers a question of D. Galvin.

Keywords

Cite

@article{arxiv.2511.00334,
  title  = {Multiple breaks of log-concavity in the independence polynomials of trees},
  author = {César Bautista-Ramos},
  journal= {arXiv preprint arXiv:2511.00334},
  year   = {2025}
}

Comments

6 pages, 1 figure