==Cages==A cubic graph (all vertices have degree three) of girth that is as small as possible is known as a -cage (or as a (3,)-cage).
Кубические графы (все вершины имеют степень три) с как можно меньшим обхватом formula_1 известны как formula_1-клетки (или как (3,formula_1)-клетки).