English

A version of the Loebl-Koml\'os-S\'os conjecture for skewed trees

Combinatorics 2018-02-05 v1

Abstract

Loebl, Koml\'os, and S\'os conjectured that any graph with at least half of its vertices of degree at least k contains every tree with at most k edges. We propose a version of this conjecture for skewed trees, i.e., we consider the class of trees with at most k edges such that the sizes of the colour classes of the trees have a given ratio. We show that our conjecture is asymptotically correct for dense graphs. The proof relies on the regularity method. Our result implies bounds on Ramsey number of several trees of given skew.

Keywords

Cite

@article{arxiv.1802.00679,
  title  = {A version of the Loebl-Koml\'os-S\'os conjecture for skewed trees},
  author = {Tereza Klimošová and Diana Piguet and Václav Rozhoň},
  journal= {arXiv preprint arXiv:1802.00679},
  year   = {2018}
}

Comments

28 pages, 6 figures