A proof of the upper matching conjecture for large graphs
A proof of the upper matching conjecture for large graphs
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大图上匹配猜想的证明
DOI:
10.1016/j.jctb.2021.07.005
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Perkins, Will
中科院分区:
文献类型:
--
作者:
Davies, Ewan;Jenssen, Matthew;Perkins, Will
We prove that the ‘Upper Matching Conjecture’of Friedland, Krop, and Markström and the analogous conjecture of Kahn for independent sets in regular graphs hold for all large enough graphs as a function of the degree. That is, for every d and every large enough n divisible by 2d, a union of n/(2 d) copies of the complete d-regular bipartite graph maximizes the number of independent sets and matchings of size k for each k over all d-regular graphs on n vertices. To prove this we utilize the cluster expansion for the canonical ensemble of a statistical physics spin model, and we give some further applications of this method to maximizing and minimizing the number of independent sets and matchings of a given size in regular graphs of a given minimum girth.
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DOI:
--
发表时间:
2013
期刊:
J. Comb. Theory B
影响因子:
--
作者:
Jonathan Cutler;A. J. Radcliffe
通讯作者:
A. J. Radcliffe
DOI:
--
发表时间:
2015
期刊:
影响因子:
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作者:
Will Perkins
通讯作者:
Will Perkins
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
S. Friedland;E. Krop;P. Lundow;K. Markstrom
通讯作者:
K. Markstrom
影响因子:
0.9
作者:
Luke Sernau
通讯作者:
Luke Sernau
DOI:
--
发表时间:
2012
期刊:
Journal of Combinatorial Theory
影响因子:
--
作者:
L. Ilinca;J. Kahn
通讯作者:
J. Kahn