On a problem of chvatal
✍ Scribed by Guy Farhi
- Book ID
- 103057020
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 63 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
✦ Synopsis
In this note we answer in the n~gative the following question posed by Chvfital Question. Is it truc chat if G is a graph of order 4k with minimum aegree 2k, there exists a parti,;on of the vertex set into X~ tAX,. with [Xtt = tX_,I = 2k and d~lxt>~k for x~X, (we denote by d~Ix) the degree of the vertex x in the subgraph induced by X~t?
For each k > 2 ,,~.~ construct a graph G = (X. E) a.s follows ,for an examplc with
📜 SIMILAR VOLUMES
We investigate the relations among the chromatic index q(X), the maximum degree d(Z), the total chromatic number q\*(Z), and the maximum size d,(Z) of an intersecting subhypergraph of a hypergraph Z: For some particular classes of hypergraphs, including Steiner systems, we provide sufficient conditi