The sum of the distances between the leaves of a tree and the 'semi-regular' property

@article{Szkely2011TheSO,
  title={The sum of the distances between the leaves of a tree and the 'semi-regular' property},
  author={L{\'a}szl{\'o} A. Sz{\'e}kely and Hua Wang and Taoyang Wu},
  journal={Discrete mathematics},
  year={2011},
  volume={311 13},
  pages={1197-1203}
}
Various topological indices have been put forward in different studies from bio-chemistry to pure mathematics. Among them the Wiener index, the number of subtrees and the Randić index have received great attention from mathematicians. While studying the extremal problems regarding these indices among trees, one interesting phenomenon is that they share the same extremal tree structures. Much effort was devoted to the study of the correlations between these various indices. In this note we… CONTINUE READING
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