A graph is called K1,.-free if it contains no K l , n as an induced subgraph. Let n ( r 3), r be integers (if r is odd, r 2 n -1). We prove that every Kl,,-free connected graph G with rlV(G)I even has an r-factor if its minimum degree is at least This degree condition is sharp.
A degree condition for the existence of k-factors
β Scribed by Tsuyoshi Nishimura
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 358 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Let k be an integer such that β¦, and let G be a connected graph of order n with β¦, kn even, and minimum degree at least k. We prove that if G satisfies max(deg(u), deg(v)) β¦ n/2 for each pair of nonadjacent vertices u, v in G, then G has a kβfactor.
π SIMILAR VOLUMES
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Let m, 1, n be three odd integers such that m < I < n. It is proved that if a graph G has an mfactor and an rrfactor, then it also has an /factor. In addition, we obtain sufficient conditions for the existence of an f-factor, in terms of vertexdeleted subgraphs. All graphs considered here are multi
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