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An even factor of a graph G is a spanning subgraph in G such that the degree of each vertex is a positive even integer. In this paper, we show that for any induced claw of simple graph G of order at least 10, if there exists at least a pair of vertices out of the claw such that they are the common neighbors of nonadjacent vertices of the claw, then G has an even factor if and only if $$\delta (G)\ge...
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