Question: Let G = (V, E) be a loop-free connected undirected graph, where V = {a, b, c, . . . , h, i, j}. Ordering

Let G = (V, E) be a loop-free connected undirected graph, where V = {a, b, c, . . . , h, i, j}. Ordering the vertices alphabetically, the depth-first spanning tree T for G - with a as the root-is given in Fig. 12.45(i). In part (ii) of the figure the ordered pair next to each vertex v provides (lowÊ¹(v), low(v)). Determine the articulation points and the spanning trees for the biconnected components of G.

e(2) b(2, 2) f(3, 2) b(3) h(9) g(10) c(5) c(4, 4) (2, 2) i (8) (7) d(6)

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