## Abstract We show that the problem raised by Boesch, Suffel, and Tindell of determining whether or not a graph is spanned by an Eulerian subgraph is NPโcomplete. We also note that there does exist a good algorithm for determining if a graph is spanned by a subgraph having positive even degree at
A Note on Sub-Eulerian Graphs
โ Scribed by F. Jaeger
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- English
- Weight
- 114 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
We present an algebraic proof of the following result: a set of edges of a multigraph G is contained in some cycle of G iff the set contains no odd cocycle of G (โcycleโ means here: edge disjoint sum of elementary cycles). As a corollary we obtain the characterization of subโEulerian graphs given by Boesch et al. [The spanning subgraphs of Eulerian grpahs. J. Graph Theory (1) (1977) 79โ84].
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