Cycle packing

In the 1960s, Erdős and Gallai conjectured that the edge set of every graph on n vertices can be partitioned into O(n) cycles and edges. They observed that one can easily get an O(nlogn) upper bound by repeatedly removing the edges of the longest cycle. We make the first progress on this problem, sh...

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Main Authors: Conlon, David, Fox, Jacob, Sudakov, Benny
Other Authors: Massachusetts Institute of Technology. Department of Mathematics
Format: Article
Language:en_US
Published: Wiley-VCH Verlag GmbH & Co. 2015
Online Access:http://hdl.handle.net/1721.1/92862
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author Conlon, David
Fox, Jacob
Sudakov, Benny
author2 Massachusetts Institute of Technology. Department of Mathematics
author_facet Massachusetts Institute of Technology. Department of Mathematics
Conlon, David
Fox, Jacob
Sudakov, Benny
author_sort Conlon, David
collection MIT
description In the 1960s, Erdős and Gallai conjectured that the edge set of every graph on n vertices can be partitioned into O(n) cycles and edges. They observed that one can easily get an O(nlogn) upper bound by repeatedly removing the edges of the longest cycle. We make the first progress on this problem, showing that O(nloglogn) cycles and edges suffice. We also prove the Erdős-Gallai conjecture for random graphs and for graphs with linear minimum degree.
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spelling mit-1721.1/928622022-09-30T21:41:59Z Cycle packing Conlon, David Fox, Jacob Sudakov, Benny Massachusetts Institute of Technology. Department of Mathematics Fox, Jacob In the 1960s, Erdős and Gallai conjectured that the edge set of every graph on n vertices can be partitioned into O(n) cycles and edges. They observed that one can easily get an O(nlogn) upper bound by repeatedly removing the edges of the longest cycle. We make the first progress on this problem, showing that O(nloglogn) cycles and edges suffice. We also prove the Erdős-Gallai conjecture for random graphs and for graphs with linear minimum degree. Royal Society (Great Britain) (University Research Fellowship) Simons Foundation (Fellowship) National Science Foundation (U.S.) (Grant NSF-DMS-1069197) Alfred P. Sloan Foundation (Fellowship) NEC Corporation (MIT NEC Corp. award) Swiss National Science Foundation (SNSF grant 200021-149111) United States-Israel Binational Science Foundation (grant) 2015-01-14T18:25:44Z 2015-01-14T18:25:44Z 2014-12 2013-10 Article http://purl.org/eprint/type/JournalArticle 10429832 http://hdl.handle.net/1721.1/92862 Conlon, David, Jacob Fox, and Benny Sudakov. “Cycle Packing.” Random Struct. Alg. 45, no. 4 (October 16, 2014): 608–626. en_US http://dx.doi.org/10.1002/rsa.20574 Random Structures & Algorithms Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley-VCH Verlag GmbH & Co. arXiv
spellingShingle Conlon, David
Fox, Jacob
Sudakov, Benny
Cycle packing
title Cycle packing
title_full Cycle packing
title_fullStr Cycle packing
title_full_unstemmed Cycle packing
title_short Cycle packing
title_sort cycle packing
url http://hdl.handle.net/1721.1/92862
work_keys_str_mv AT conlondavid cyclepacking
AT foxjacob cyclepacking
AT sudakovbenny cyclepacking