10 citations · 11 across the 4 of their papers we have counts for
7 papers · 1 filter
On the spectrum and energy of Seidel matrix for chain graphs
Santanu Mandal, Ranjit Mehatari, Kinkar Chandra Das
We study various spectral properties of the Seidel matrix of a connected chain graph. We prove that is always an eigenvalue of and all other eigenvalues of can hav…
Distance-regular Cayley graphs over dicyclic groups
Xueyi Huang, Kinkar Chandra Das, Lu Lu
The characterization of distance-regular Cayley graphs originated from the problem of identifying strongly regular Cayley graphs, or equivalently, regular partial difference sets.…
On a Conjecture About the Sombor Index of Graphs
Kinkar Chandra Das, Ali Ghalavand, Ali Reza Ashrafi
Let be a graph with vertex set and edge set . The Sombor and reduced Sombor indices of are defined as and…
On the Relation Between Wiener Index and Eccentricity of a Graph
Hamid Darabi, Yaser Alizadeh, Sandi Klavžar +1
The relation between the Wiener index and the eccentricity of a graph is studied. Lower and upper bounds on in terms of are prov…
Comparison of Wiener index and Zagreb eccentricity indices
Kexiang Xu, Kinkar Chandra Das, Sandi Klavžar +1
The first and the second Zagreb eccentricity index of a graph are defined as and $E_2(G)=\sum_{uv\in E(G)}\varepsilon_{G}(u)\var…
Embeddings into almost self-centered graphs of given radius
Kexiang Xu, Haiqiong Liu, Kinkar Ch. Das +1
A graph is almost self-centered (ASC) if all but two of its vertices are central. An almost self-centered graph with radius is called an -ASC graph. The -ASC index $θ_r(G…