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graph_exact_distance_square (298B)

      1 # Graph exact distance square
      2 
      3 Given a [graph] G, the *exact square* of G is a graph G' on the same [vertices] where you connect each pair of vertices that are connected by a [walk] of length exactly 2
      4 
      5 [graph_exact_distance_square_root_problem]
      6 
      7 Up: [graph_square]
      8 
      9 See also: [Graph_exact_square]