英和和英

名詞

thrackle (複数形 thrackles)

1. (graph theory) An embedding of a graph in the plane, such that each edge is a Jordan arc and every pair of edges meet once.
   • 2016, Grace Misereh, Yuri Nikolayevsky, “Thrackles containing a standard musquash”, in arXiv^[1]:

     We prove that a thrackle drawing containing a standard musquash (standard n-gonal thrackle) cannot contain any other cycle of length three or five.

参照

• Dan Archdeacon, thrackle. http://www.cems.uvm.edu/TopologicalGraphTheoryProblems/thrackle.htm