Partition of a graph into cycles and isolated vertices

نویسنده

  • Shinya Fujita
چکیده

Let k, r, n be integers with k ≥ 2, 0 ≤ r ≤ k−1 and n ≥ 10k+3. We prove that if G is a graph of order n such that the degree sum of any pair of nonadjacent vertices is at least n−r, then G contains k vertexdisjoint subgraphs Hi, 1 ≤ i ≤ k, such that V (H1) ∪ . . . ∪ V (Hk) = V (G) and such that Hi is a cycle or isomorphic to K1 for each i with 1 ≤ i ≤ r, and Hi is a cycle for each i with r + 1 ≤ i ≤ k.

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عنوان ژورنال:
  • Australasian J. Combinatorics

دوره 32  شماره 

صفحات  -

تاریخ انتشار 2005