Physics – Condensed Matter
Scientific paper
1999-02-17
Physics
Condensed Matter
4 pages, 3 figures, Revtex
Scientific paper
In a recent paper, Diaz-Guilera et al. [Phys. Rev. E 57, 3820 (1998)] analyze the mechanisms of synchronization and pattern formation in a lattice of pulse-coupled oscillators. In essence, their analysis consists in the study of the stability of the fixed points of several linear return maps which are obtained from the original system by means of matrix manipulations. We show that although the model they consider is very specific and actually unable to account even for a linear phase response curve, their method does not give correct information on the original system since many of the assumptions involved are in general not correct. To clarify these aspects, several issues concerning the real dynamics are also discussed.
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