Construction and Structural Analysis of Inter-Regional Industrial Circular Network: A Case of the Middle and Lower Reaches of the Yellow River in China

Figure 1

Several situations of whether there are common nodes between new cycles and sets: (a) the case that a new cycle has a common node and no common edge with an existing set; (b) the case that a new cycle has a common node and no common edge with existing sets; (c) the case that a new cycle has a common node and a common edge with an existing set; (d) the case that there is no common node between a new cycle and all existing sets.

(a)

(b)

(c)

(d)