2 papers
math.CO2025
On the difference of the intersection power graph and the power graph of a finite group
Sudip Bera, Peter J. Cameron
The difference graph D(G) of a finite group G is the graph obtained by taking the (edge) difference of the intersection power graph and the power graph of G, and subsequently remov…
math.CO2025
Existence of a Non-Zero -Vector in the Row Space of Adjacency Matrices of Simple Graphs
Sudip Bera
We look for a non-zero -vector in the row space of the adjacency matrix of a graph provided has at least one edge. Akbari, Cameron, and Khosrovshahi conj…