digirth

English

Etymology

di- +‎ girth

Noun

digirth (plural digirths)

1. (mathematics) The girth of a digraph.
   • 2016, Zhentao Li, Bojan Mohar, “Planar digraphs of digirth four are 2-colourable”, in arXiv‎^[1]:

     We prove a relaxed version of this conjecture: every planar digraph of digirth at least four is 2-colourable..