## Abstract Lower bounds on the size of a maximum bipartite subgraph of a triangle‐free __r__‐regular graph are presented.
On the number of maximal bipartite subgraphs of a graph
✍ Scribed by Jesper Makholm Byskov; Bolette Ammitzbøll Madsen; Bjarke Skjernaa
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 72 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
We show new lower and upper bounds on the maximum number of maximal induced bipartite subgraphs of graphs with n vertices. We present an infinite family of graphs having 105 n=10 % 1:5926 n ; such subgraphs show an upper bound of O(12 n=4 ) ¼ O(1:8613 n ) and give an algorithm that finds all maximal induced bipartite subgraphs in time within a polynomial factor of this bound. This algorithm is used in the construction of algorithms for checking k-colorability of a graph.
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