Random directed graphs are robustly Hamiltonian
Random directed graphs are robustly Hamiltonian
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随机有向图具有稳健的哈密顿量
DOI:
10.1002/rsa.20631
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发表时间:
2016
影响因子:
1
通讯作者:
Hefetz D
中科院分区:
文献类型:
--
作者:
Hefetz D
A classical theorem of Ghouila‐Houri from 1960 asserts that every directed graph onnvertices with minimum out‐degree and in‐degree at least contains a directed Hamilton cycle. In this paper we extend this theorem to a random directed graph , that is, a directed graph in which every ordered pair (u, v) becomes an arc with probabilitypindependently of all other pairs. Motivated by the study of resilience of properties of random graphs, we prove that if , then a.a.s. every subdigraph of with minimum out‐degree and in‐degree at least contains a directed Hamilton cycle. The constant 1/2 is asymptotically best possible. Our result also strengthens classical results about the existence of directed Hamilton cycles in random directed graphs. © 2016 Wiley Periodicals, Inc. Random Struct. Alg., 49, 345–362, 2016
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DOI:
10.1016/j.jctb.2016.06.001
发表时间:
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期刊:
J. Comb. Theory B
影响因子:
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发表时间:
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期刊:
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影响因子:
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作者:
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DOI:
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发表时间:
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期刊:
SIAM J. Discret. Math.
影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
2014
期刊:
J. Comb. Theory B
影响因子:
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作者:
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