The number of well-oriented regions
✍ Scribed by Zoltán Füredi
- Book ID
- 104641762
- Publisher
- Springer
- Year
- 1982
- Tongue
- English
- Weight
- 144 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0046-5755
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
We introduce in this paper the notion of the chromatic number of an oriented graph G (that is of an antisymmetric directed graph) defined as the minimum order of an oriented graph H such that G admits a homomorphism to H. We study the chromatic number of oriented k-trees and of oriented graphs with
In this paper, we focus on the oriented coloring of graphs. Oriented coloring is a coloring of the vertices of an oriented graph G without symmetric arcs such that (i) no two neighbors in G are assigned the same color, and (ii) if two vertices u and v such that (u, v) ∈ A(G) are assigned colors c(u)
For two vertices u and v of an oriented graph D, the set I (u, v) consists of all vertices lying on a uv geodesic or vu geodesic in D. If S is a set of vertices of D, then I (S) is the union of all sets I (u, v) for vertices u and v in S. The geodetic number g(D) is the minimum cardinality among the