Please note, due to scheduled maintenance online transactions will not be possible between 08:00 and 12:00 BST, on Sunday 17th February 2019 (03:00-07:00 EDT, 17th February, 2019). We apologise for any inconvenience
A Thomsen graph [2, p. 22] consists of six vertices partitioned into two classes of three each, with every vertex in one class connected to every vertex in the other; it is the graph of the “gas, water, and electricity” problem [1, p. 206]. (All graphs considered in this paper will be undirected, having neither loops nor multiple edges.)
Email your librarian or administrator to recommend adding this journal to your organisation's collection.