Figure 3
From: Arapan-S: a fast and highly accurate whole-genome assembly software for viruses and small genomes
Bubbles. This figure illustrates three simple bubbles and two complex bubbles. Simple bubbles are A-C, B-D and E-F. The first complex bubble starts at A and ends at D while the second one starts at D and ends at F. (X-Y is the subgraph that starts at X and ends at Y). Complex bubbles are solved by executing the simple bubble-solving algorithm and path-collapsing algorithm.