Title
Hamiltonian square-paths
Abstract
A hamiltonian square-path (-cycle) is one obtained from a hamiltonian path (cycle) by joining every pair of vertices of distance two in the path (cycle). Let G be a graph on n vertices with minimum degree δ ( G ). Posá and Seymour conjectured that if δ ( G )⩾ 2 3 n , then G contains a hamiltonian square-cycle. We prove that if δ ( G )⩾(2 n −1)/3, then G contains a hamiltonian square-path. A consequence of this result is a theorem of Aigner and Brandt that confirms the case Δ ( H )=2 of the Bollabás–Eldridge Conjecture: if G and H are graphs on n vertices and ( Δ ( G )+1)( Δ ( H )+1)⩽ n +1, then G and H can be packed.
Year
DOI
Venue
1996
10.1006/jctb.1996.0039
J. Comb. Theory, Ser. B
Keywords
Field
DocType
hamiltonian square-paths,hamiltonian path
Discrete mathematics,Graph,Combinatorics,Hamiltonian (quantum mechanics),Vertex (geometry),Hamiltonian path,Conjecture,Mathematics
Journal
Volume
Issue
ISSN
67
2
Journal of Combinatorial Theory, Series B
Citations 
PageRank 
References 
17
2.21
2
Authors
2
Name
Order
Citations
PageRank
Genghua Fan141265.22
H. A. Kierstead2172.21