Fig. 5
From: Convergence and covering on graphs for wait-free robots

Topological perspective of graph convergence. Impossibility of graph convergence on cycle C=v1,v2,v3,v4,v1 by three processes
From: Convergence and covering on graphs for wait-free robots
Topological perspective of graph convergence. Impossibility of graph convergence on cycle C=v1,v2,v3,v4,v1 by three processes