Figure 1
From: The evolutionary extortion game of multiple groups in hypernetworks
Different game relationships are expressed by network structure. Nodes and edges/hyperedges represent players and game relationships, respectively: (a) edge of complex network represents pairwise game relationship between two players; (b) degree of nodes in complex network show that player play a game with multiple opponents; (c) hyperedge shows that players participate in single-group game in hypernetwork and nodes in hyperedge are fully connected; (d) hyperdegree of nodes can divide the neighbors into different groups to show player participates in multiple-group game. The red node is the hub node or the overlapping node which can show the heterogeneous nature of realistic game relationship because it has more neighbors than other nodes.
