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» 2-Factors in Hamiltonian Graphs
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ARSCOM
2004
73views more  ARSCOM 2004»
13 years 4 months ago
2-Factors in Hamiltonian Graphs
We show that every hamiltonian claw-free graph with a vertex x of degree d(x) 7 has a 2-factor consisting of exactly two cycles.
Florian Pfender
DM
2008
89views more  DM 2008»
13 years 5 months ago
Primitive 2-factorizations of the complete graph
Let F be a 2-factorization of the complete graph Kv admitting an automorphism group G acting primitively on the set of vertices. If F consists of Hamiltonian cycles, then F is the...
Giuseppe Mazzuoccolo
DAM
1998
75views more  DAM 1998»
13 years 4 months ago
Properly Coloured Hamiltonian Paths in Edge-coloured Complete Graphs
We consider edge-coloured complete graphs. A path or cycle Q is called properly coloured (PC) if any two adjacent edges of Q differ in colour. Our note is inspired by the followi...
Jørgen Bang-Jensen, Gregory Gutin, Anders Y...
JGT
2007
81views more  JGT 2007»
13 years 4 months ago
Independent dominating sets and hamiltonian cycles
A graph is uniquely hamiltonian if it contains exactly one hamiltonian cycle. In this note we prove that there are no r-regular uniquely hamiltonian graphs when r > 22. This im...
Penny E. Haxell, Ben Seamone, Jacques Verstraë...
DM
2007
149views more  DM 2007»
13 years 4 months ago
Even subgraphs of bridgeless graphs and 2-factors of line graphs
By Petersen’s theorem, a bridgeless cubic multigraph has a 2-factor. H. Fleischner generalised this result to bridgeless multigraphs of minimum degree at least three by showing ...
Bill Jackson, Kiyoshi Yoshimoto