18 citations · 68 across the 27 of their papers we have counts for
4 papers · 1 filter
The extremal problems on the inertia of weighted bicyclic graphs
Shibing Deng, Shuchao Li, Feifei Song
Let be a weighted graph. The number of the positive, negative and zero eigenvalues in the spectrum of are called positive inertia index, negative inertia index and null…
On the positive and negative inertia of weighted graphs
Shuchao Li, Feifei Song
The number of the positive, negative and zero eigenvalues in the spectrum of the (edge)-weighted graph are called positive inertia index, negative inertia index and nullity of…
On the eccentric distance sum of unicyclic graphs with a given matching number
Shuchao Li, Yibing Song, Bing Wei
Let be a simple connected graph. The eccentric distance sum of is defined as where is the…
Characterization of tricyclic graphs with exactly two -main eigenvalues
Shuchao Li, Xue Yang
The signless Laplacian matrix of a graph is defined to be the sum of its adjacency matrix and degree diagonal matrix, and its eigenvalues are called -eigenvalues of . A $…