2 citations · 6 across the 15 of their papers we have counts for
4 papers · 1 filter
Graphs with two main and two plain eigenvalues
Sakander Hayat, Muhammad Javaid, Jack H. Koolen
In this paper, we introduce the concepts of the plain eigenvalue, the main-plain index and the refined spectrum of graphs. We focus on the graphs with two main and two plain eigenv…
A note on graphs with exactly two main eigenvalues
Sakander Hayat, Jack H. Koolen, Fenjin Liu +1
In this note, we consider connected graphs with exactly two main eigenvalues. We will give several constructions for them, and as a consequence we show a family of those graphs wit…
Bicyclic graphs with extremal degree resistance distance
Jia-Bao Liu, Si-Qi Zhangb, Xiang-Feng Pan +2
Let be the resistance distance between two vertices of a simple graph , which is the effective resistance between the vertices in the corresponding electrical ne…
Further results on degree based topological indices of certain chemical networks
Shaohui Wang, Jia-Bao Liu, Chunxiang Wang +1
There are various topological indices such as degree based topological indices, distance based topological indices and counting related topological indices etc. These topological i…