A Simple Condition for Co-Apolar Triangles
β Scribed by Milne, W. P.
- Book ID
- 120104348
- Publisher
- Oxford University Press
- Year
- 1920
- Tongue
- English
- Weight
- 88 KB
- Volume
- s2-18
- Category
- Article
- ISSN
- 0024-6115
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Let G be a graph on n vertices and let z and B be real numbers, 0 <a, /?< 1. Further, let G satisfy the condition that each LWI J subset of its vertex set spans at least /In2 edges. The following question is considered. For a fixed G( what is the smallest value of fl such that G contains a triangle?
By generalizing the idea of extended triangle of a graph, we succeed in obtaining a common framework for the result of Roberts and Spencer about clique graphs and the one of SzwarcΓΏter about Helly graphs. We characterize Helly and 3-Helly planar graphs using extended triangles. We prove that if a pl