Abstract
The Gyárfás tree packing conjecture states that any set of n-1 trees T1, T2, Tn-1 such that Ti has n-i+1 vertices packs into Kn (for n large enough). We show that t = 1 10n1/4 trees T1, T2,Tt such that Ti has n-i+1 vertices packs into Kn+1 (for n large enough). We also prove that any set of t = 1 10n1/4 trees T1, T2, Tt such that no tree is a star and Ti has n-i+1 vertices packs into Kn (for n large enough). Finally, we prove that t = 1 4n1/3 trees T1, T2, Tt such that Ti has n - i + 1 vertices packs into Kn as long as each tree has maximum degree at least 2n2/3 (for n large enough). One of the main tools used in the paper is the famous spanning tree embedding theorem of Komlós, Sárközy, and Szemerédi [Combin. Probab. Comput., 10 (2001), pp. 397-416].
Original language | English (US) |
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Pages (from-to) | 1995-2006 |
Number of pages | 12 |
Journal | SIAM Journal on Discrete Mathematics |
Volume | 27 |
Issue number | 4 |
DOIs | |
State | Published - 2013 |
Keywords
- Packing
- Tree
- Tree packing
ASJC Scopus subject areas
- Mathematics(all)