NeSetfil, J. and V. Riidl, On Ramsey graphs without bipartite subgraphs, Discrete Mathematics 101 (1992) 223-229. We prove that for every graph H without triangles and K,,,,,m, n G 2, there exists a Ramsey graph with the same properties. This answers a problem due to Erd& and Faudree. Moreover we
Bipartite subgraphs of integer weighted graphs
✍ Scribed by Noga Alon; Eran Halperin
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 411 KB
- Volume
- 181
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
✦ Synopsis
For every integer p > 0, let f(p) be the minimum possible value of the maximum weight of a cut in an integer weighted graph with total weight p. It is shown that for every large n and every m < n, f((~)+m)= L¼n2j +min (I½nT,f(m)). This supplies the precise value of f(p) for many values of p including, e.g., all p = (i) ÷ (~) when n is large enough and ~ml 2 ~< 5n.
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