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math.CO2019
Distance Matrix of a Multi-block Graph: Determinant and Inverse
Joyentanuj Das, Sumit Mohanty
A connected graph is called a multi-block graph if each of its blocks is a complete multi-partite graph. Building on the work of \cite{Bp3,Hou3}, we compute the determinant and inv…
math.CO2019
Distance Matrix of a Class of Completely Positive Graphs: Determinant and Inverse
Joyentanuj Das, Sachindranath Jayaraman, Sumit Mohanty
A real symmetric matrix is said to be completely positive if it can be written as for some (not necessarily square) nonnegative matrix . A simple graph is called…