Jacob Johnston

collaborators

2 papers

math.CO2025

Expansion in Distance Matrices

John Byrne, Jacob Johnston, Carl Schildkraut +1

The normalized distance Laplacian matrix $D^{L} (G)$ of a graph $G$ is a natural generalization of the normalized Laplacian matrix, arising from the matrix of pa…

math.CO2023

Extremal values for the spectral radius of the normalized distance Laplacian

Jacob Johnston, Michael Tait

The normalized distance Laplacian of a graph $G$ is defined as $D^{L} (G) = T (G)^{- 1/2} (T (G) - D (G)) T (G)^{- 1/2}$ where $D (G)$ is the matrix with pa…