As well as in the three utilities problem, the graph appears in late 19th-century and early 20th-century publications both in early studies of structural rigidity and in chemical graph theory, where Julius Thomsen proposed it in 1886 for the then-uncertain structure of benzene. In honor of Thomsen's work, is sometimes called the Thomsen graph.
As well as in the three utilities problem, the graph appears in late 19th-century and early 20th-century publications both in early studies of structural rigidity and in chemical graph theory, where Julius Thomsen proposed it in 1886 for the th.en-uncertain structure of benzene In honor of Thomsen's work, is sometimes called the Thomsen graph.