مؤلف: F. K. Hwang

The Steiner problem asks for a shortest network which spans a given set of points. Minimum spanning networks have been well-studied when all connections are required to be between the given points. T …

The consecutive-k system was first studied around 1980, and it soon became a very popular subject. The reasons were many-folded, includ- ing: 1. The system is simple and natural. So most people can u …