Algorithms / graph / time complexity (computer Science)The

incidence matrix
of a directed

Question

Algorithms / graph / time complexity (computer Science)

The incidence matrix of a directed

graph G = (V, E) with no-self loops is a |V | × |E| matrixB = (bij) such that

2. The incidence matrix of a directed graph G = (V, E) with no-self loops is a |V| gt;; |E| matrix
B = (béj) such that
—1 if edge 3′ leaves vertex 3′,
béj = 1 if edge j enters vertex 2′,
0 otherwise. Describe what the entries of the matrix product BBT represent, where ET is the transpose of
B.
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