Chessboard graphs, related designs, and domination parameters
β Scribed by Renu Laskar; Charles Wallis
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 162 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0378-3758
No coin nor oath required. For personal study only.
β¦ Synopsis
The graph-theoretic study of combinatorial chessboard problems can be extended to the study of line graphs of graphs of combinatorial designs. In particular, the determination of optimal placements of rooks on a chessboard corresponds to the determination of domination parameters of graphs of block designs. The determination of one such parameter, the independence number, is shown to follow directly from classical results in design theory. Additionally, the domination number of graphs of ΓΏnite projective planes is discussed.
π SIMILAR VOLUMES
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A dominating set for a graph G = (V, E) is a subset of vertices V β V such that for all v β V -V there exists some u β V for which {v, u} β E. The domination number of G is the size of its smallest dominating set(s). We show that for almost all connected graphs with minimum degree at least 2 and q e
We consider the well-known upper bounds Β΅(G) β€ |V (G)|-β(G), where β(G) denotes the maximum degree of G and Β΅(G) the irredundance, domination or independent domination numbers of G and give necessary and sufficient conditions for equality to hold in each case. We also describe specific classes of gr