English

Transversal factors and spanning trees

Combinatorics 2022-05-04 v3

Abstract

Given a collection of graphs G=(G1,,Gm)\mathbf{G}=(G_1, \ldots, G_m) with the same vertex set, an mm-edge graph Hi[m]GiH\subset \cup_{i\in [m]}G_i is a transversal if there is a bijection ϕ:E(H)[m]\phi:E(H)\to [m] such that eE(Gϕ(e))e\in E(G_{\phi(e)}) for each eE(H)e\in E(H). We give asymptotically-tight minimum degree conditions for a graph collection on an nn-vertex set to have a transversal which is a copy of a graph HH, when HH is an nn-vertex graph which is an FF-factor or a tree with maximum degree o(n/logn)o(n/\log n).

Keywords

Cite

@article{arxiv.2107.04629,
  title  = {Transversal factors and spanning trees},
  author = {Richard Montgomery and Alp Müyesser and Yanitsa Pehova},
  journal= {arXiv preprint arXiv:2107.04629},
  year   = {2022}
}

Comments

21 pages

R2 v1 2026-06-24T04:03:17.442Z