Sub-Graph of a Graph

Sub-Graph of a Graph

A graph G = (L, S) given as such, a sub-graph of G is the graph G1 = (L1, S1) formed by a subset S1 of vertices of G and a sub-set L1 of edges of L.


Consider the graph G below, defined by G = (L, S), where L = {a, b, c, d, e, g, f, g, h, m, n} and S = {A, B, C, D, E, F}.

The graph G1 = (L1, S1), such as L1 = {a, b, g, n} and S1 = {A, B, C, E}, is a sub-graph of G.


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