Abstract
The Hamiltonian index of a graph G is defined as h ( G ) = min { m : L m ( G ) is Hamiltonian } . In this paper, using the reduction method of Catlin [P.A. Catlin, A reduction method to find spanning Eulerian subgraphs, J. Graph Theory 12 (1988) 29–44], we constructed a graph H ̃ ( m ) ( G ) from G and prove that if h ( G ) ≥ 2 , then h ( G ) = min{ m : H ̃ ( m ) ( G ) has a spanning Eulerian subgraph }.
Original language | American English |
---|---|
Journal | Scholarship and Professional Work - LAS |
Volume | 309 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 2009 |
Keywords
- Collapsible graph
- Hamiltonian index
- Line graph
Disciplines
- Computer Sciences
- Mathematics