9 citations · 14 across the 7 of their papers we have counts for
7 papers
The normality and sum of normalities of trees
Ya-Hong Chen, Hua Wang, Xiao-Dong Zhang
The eccentricity of a vertex in a graph is the maximum distance from to any other vertex. The vertices whose eccentricity are equal to the diameter (the maximum eccentr…
Variations of the eccentricity and their properties in trees
Ya-Hong Chen, Hua Wang, Xiao-Dong Zhang
Motivated from the study of eccentricity, center, and sum of eccentricities in graphs and trees, we introduce several new distance-based global and local functions based on the sma…
On majorization of closed walks vector of trees with given degree sequences
Ya-Hong Chen, Daniel Gray, Ya-Lei Jin +1
Let be the number of the closed walks of length starting at vertex in a tree . We prove that for a given tree degree sequence , then for any tree with de…
The Terminal Wiener Index of Trees with Diameter or Maximum Degree
Ya-Hong Chen, Xiao-Dong Zhang
The terminal Wiener index of a tree is the sum of distances for all pairs of pendent vertices, which recently arises in the study of phylogenetic tree reconstruction and the neighb…
The Wiener and Terminal Wiener indices of trees
Ya-Hong Chen, Xiao-Dong Zhang
Heydari \cite{heydari2013} presented very nice formulae for the Wiener and terminal Wiener indices of generalized Bethe trees. It is pity that there are some errors for the formula…
The Laplacian Spectra of Graphs and Complex Networks
Ya-Hong Chen, Rong-Ying Pan, Xiao-Dong Zhang
The paper is a brief survey of some recent new results and progress of the Laplacian spectra of graphs and complex networks (in particular, random graph and the small world network…
The Wiener Index of Unicyclic Graphs with Girth and the Matching Number
Ya-Hong Chen, Xiao-Dong Zhang
In this paper, we investigate how the Wiener index of unicyclic graphs varies with graph operations. These results are used to present a sharp lower bound for the Wiener index of u…