Stable belt Stable belt A stable belt is an item of uniform used in the armed forces of Denmark, the United Kingdom and other Commonwealth countries. Gymnastic belts are similar coloured belts used in Brazil and Lebanon. The stable belt originates from when cavalrymen would place the surcingle around the waist when cleaning the stables and tending to their horses. In the 1950s they spread to all branches of the armed forces, adding a splash of colour and individuality to the drab khaki working uniforms. Initially they were resisted by many senior officers, who saw them as too individualistic, but they soon
Matroid girth the use of girth in graph theory, meaning the length of the shortest cycle in a graph: the girth of a graphic matroid is the same as the girth of its underlying graph. The girth of other classes of matroids also corresponds to important combinatorial problems. For instance, the girth of a co-graphic matroid (or the cogirth of a graphic matroid) equals the edge connectivity of the underlying graph, the number of edges in a minimum cut of the graph. The girth of a transversal matroid gives the cardinality of a minimum Hall set in a bipartite graph: this is