License: Creative Commons Attribution 3.0 Unported license (CC BY 3.0)
When quoting this document, please refer to the following
DOI: 10.4230/LIPIcs.APPROX-RANDOM.2014.490
URN: urn:nbn:de:0030-drops-47184
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2014/4718/
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Böttcher, Julia ; Hladký, Jan ; Piguet, Diana ; Taraz, Anusch

An Approximate Version of the Tree Packing Conjecture via Random Embeddings

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Abstract

We prove that for any pair of constants a>0 and D and for n sufficiently large, every family of trees of orders at most n, maximum degrees at most D, and with at most n(n-1)/2 edges in total packs into the complete graph of order (1+a)n. This implies asymptotic versions of the Tree Packing Conjecture of Gyarfas from 1976 and a tree packing conjecture of Ringel from 1963 for trees with bounded maximum degree. A novel random tree embedding process combined with the nibble method forms the core of the proof.

BibTeX - Entry

@InProceedings{bttcher_et_al:LIPIcs:2014:4718,
  author =	{Julia B{\"o}ttcher and Jan Hladk{\'y} and Diana Piguet and Anusch Taraz},
  title =	{{An Approximate Version of the Tree Packing Conjecture via Random Embeddings}},
  booktitle =	{Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2014)},
  pages =	{490--499},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-74-3},
  ISSN =	{1868-8969},
  year =	{2014},
  volume =	{28},
  editor =	{Klaus Jansen and Jos{\'e} D. P. Rolim and Nikhil R. Devanur and Cristopher Moore},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2014/4718},
  URN =		{urn:nbn:de:0030-drops-47184},
  doi =		{10.4230/LIPIcs.APPROX-RANDOM.2014.490},
  annote =	{Keywords: tree packing conjecture, Ringel’s conjecture, random walks, quasirandom graphs}
}

Keywords: tree packing conjecture, Ringel’s conjecture, random walks, quasirandom graphs
Collection: Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2014)
Issue Date: 2014
Date of publication: 04.09.2014

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