Title
Proof of Komlós's conjecture on Hamiltonian subsets
Abstract
Komlós conjectured in 1981 that among all graphs with minimum degree at least d, the complete graph Kd+1 minimises the number of Hamiltonian subsets, where a subset of vertices is Hamiltonian if it contains a spanning cycle. We prove this conjecture when d is sufficiently large. In fact we prove a stronger result: for large d, any graph G with average degree at least d contains almost twice as many Hamiltonian subsets as Kd+1, unless G is isomorphic to Kd+1 or a certain other graph which we specify.
Year
DOI
Venue
2017
10.1016/j.endm.2017.07.029
Electronic Notes in Discrete Mathematics
Keywords
DocType
Volume
Extremal graph theory,Hamiltonian cycles,expansion,Blow-up method
Journal
61
Issue
ISSN
Citations 
5
1571-0653
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Jae-Hoon Kim126865.73
Hong Liu2398.54
Maryam Sharifzadeh3113.83
Katherine Staden463.31