Generate a graph Laplacian

Description

Generates a graph Laplacian from the graph adjacency matrix.

Usage

adj2lapl(A)

Arguments

Details

A graph Laplacian is defined as: l_{i,j} = deg( v_i ) , if i = j ; l_{i,j} = -1 , if i \neq j and v_i is adjacent to v_j; and l_{i,j} = 0 , otherwise

Value

The n-by-n Laplacian matrix of the graph

See Also

adj2nlapl

Results