Mathematics – Combinatorics
Scientific paper
2006-12-24
Mathematics
Combinatorics
19 pages
Scientific paper
In this paper we prove a sufficient condition for the existence of a Hamilton cycle, which is applicable to a wide variety of graphs, including relatively sparse graphs. In contrast to previous criteria, ours is based on only two properties: one requiring expansion of ``small'' sets, the other ensuring the existence of an edge between any two disjoint ``large'' sets. We also discuss applications in positional games, random graphs and extremal graph theory.
Hefetz Dan
Krivelevich Michael
Szabó Tibor
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