For an undirected graph G = (V,E) let i'(G) be the largest d for which there exists an oriented matroid M on V of corank d such that for each nonzero vector (x+,x-) of M, x+ is nonempty and induces a connected subgraph of G. We show that I'(G) is monotone under taking minors and clique sums. Moreov
On a Minor-Monotone Graph Invariant
β Scribed by H Vanderholst; M Laurent; A Schrijver
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 558 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0095-8956
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