18 citations · 81 across the 38 of their papers we have counts for
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math.CO2023
On the trace-zero doubly stochastic matrices of order 5
Amrita Mandal, Bibhas Adhikari
We propose a graph theoretic approach to determine trace of product of two permutation matrices through a weighted digraph representation of the permutation matrices. Consequently,…
math.CO2023★ 1 cited
Structural balance and spectral properties of generalized corona product of signed graphs
Amrik Singh, Ravi Srivastava, Bibhas Adhikari +1
In this paper, we extend our earlier proposal of corona product of signed graphs into generalized corona product of signed graphs inspired by the generalized corona product of unsi…
math.CO2023★ 2 cited
A characterization of orthogonal permutative matrices of order 4
Amrita Mandal, Bibhas Adhikari
Orthogonal matrices which are linear combinations of permutation matrices have attracted enormous attention in quantum information and computation. In this paper, we provide a comp…