【摘要】 一个连通的无圈分子图(树)称为双繁星，如果删去其所有悬挂点后，得到的分子图是双星树。主要考虑双繁星的Wiener指标的极值问题，完全刻画了具有固定顶点数的双繁星的最小Wiener指标。更多还原

【Abstract】 A tree is called to be a blossomed double star if the graph obtained from the tree by deleting its all pendent vertices is a double star.In this paper, the problem on the extremal Wiener indices of blossomed double stars was considered, and the minimal Wiener index of the blossomed double star with a fixed number of vertices was completely characterized.更多还原