English

Random 4-regular graphs have 3-star decompositions asymptotically almost surely

Combinatorics 2018-04-02 v3

Abstract

In 2006, Barat and Thomassen conjectured in 2006 that the edges of every planar 4-regular 4-edge-connected graph can be decomposed into copies of the star with 3 leaves. Shortly afterward, Lai constructed a counterexample to this conjecture. Using the small subgraph conditioning method of Robinson and Wormald, we prove that a random 4-regular graph has an S3S_3-decomposition asymptotically almost surely, provided the number of vertices is divisible by 3.

Keywords

Cite

@article{arxiv.1610.01113,
  title  = {Random 4-regular graphs have 3-star decompositions asymptotically almost surely},
  author = {Michelle Delcourt and Luke Postle},
  journal= {arXiv preprint arXiv:1610.01113},
  year   = {2018}
}

Comments

18 pages, 1 figure

R2 v1 2026-06-22T16:10:30.799Z