An overview of the firing squad synchronization problem
Proceedings on LITP spring school on Theoretical Computer Science on Automata networks
On time optimal solutions of the firing squad synchronization problem for two-dimensional paths
Theoretical Computer Science
On the Complexity of Network Synchronization
SIAM Journal on Computing
On the complexity of the “most general” firing squad synchronization problem
STACS'06 Proceedings of the 23rd Annual conference on Theoretical Aspects of Computer Science
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We show that if a minimal-time solution exists for a fundamental distributed computation primitive, synchronizing arbitrary undirected networks of finite-state processors, then there must exist an "extraordinarily fast" Õ(D5E) algorithm in the RAM model of computation for exactly determining the diameter D of an arbitrary unweighted undirected graph with E edges. The proof is constructive. At present we know eight variations of the firing squad synchronization problems whose solutions are known but whose minimal-time solutions are not known. Our result essentially completes the program outlined in [3] to show that it is highly unlikely for there to exist minimal-time solutions for these variations.