activity
20072023
most citedGlobally optimal dense and sparse spanning trees, and their applications

5 citations · 15 across the 19 of their papers we have counts for

collaborators

19 papers

math.CO2023

Extremal values for Steiner distances and the Steiner -Wiener index

Hua Wang, Andrew Zhang

Various questions related to distances between vertices of simple, finite graphs are of interest to extremal graph theorists. The Steiner distance of a set of vertices is a nat…

math.CO2021

Subtrees and BC-subtrees of maximum degree no more than k in trees

Yu Yang, Xiao-xiao Li, Meng-yuan Jin +3

The subtrees and BC-subtrees (subtrees where any two leaves are at even distance apart) have been extensively studied in recent years. Such structures, under special constraints on…

math.CO2020

On the maximum mean subtree order of trees

Stijn Cambie, Stephan Wagner, Hua Wang

A subtree of a tree is any induced subgraph that is again a tree (i.e., connected). The mean subtree order of a tree is the average number of vertices of its subtrees. This invaria…

math.CO2020

The Steiner Wiener index of trees with a given segment sequence

Jie Zhang, Hua Wang, Xiao-Dong Zhang

The Steiner distance of vertices in a set is the minimum size of a connected subgraph that contain these vertices. The sum of the Steiner distances over all sets of cardina…

math.CO2020

The expected subtree number index in random polyphenylene and spiro chains

Yu Yang, Xiao-Jun Sun, Jia-Yi Cao +2

Subtree number index of a graph is the number of nonempty subtrees of . It is a structural and counting based topological index that has received more and mo…

math.CO2020★ 1 cited

Restricted Color -color Compositions

Brian Hopkins, Hua Wang

Agarwal introduced -color compositions in 2000 and most subsequent research has focused on restricting which parts are allowed. Here we focus instead on restricting allowed colo…