7 citations · 14 across the 8 of their papers we have counts for
4 papers · 1 filter
Arithmetical Structures on Wheel Graphs
Bibhas Adhikari, Namita Behera, Dilli Ram Chhetri +1
An arithmetical structure on a finite and connected graph G is a pair (d, r) of positive integer vectors such that r is primitive (the gcd of its entries is 1) and (diag(d) - A)r =…
On the eigenvalue region of permutative doubly stochastic matrices
Amrita Mandal, Bibhas Adhikari, M. Rajesh Kannan
This paper is devoted to the study of eigenvalue region of the doubly stochastic matrices which are also permutative, that is, each row of such a matrix is a permutation of any oth…
Corona product of signed graphs and its application to signed network modelling
Bibhas Adhikari, Amrik Singh, Sandeep Kumar Yadav
The notion of corona of two graphs was introduced by Frucht and Harary in 1970. In this paper we generalize their definition of corona product of two graphs and introduce corona pr…
Construction of cospectral graphs
Supriyo Dutta, Bibhas Adhikari
Construction of non-isomorphic cospectral graphs is a nontrivial problem in spectral graph theory specially for large graphs. In this paper, we establish that graph theoretical par…