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TITLE Robustness and asymptotic stability for the Winfree model on a general network under the effect of time-delay
KIAS AUTHORS Ha, Seung-Yeal
JOURNAL JOURNAL OF MATHEMATICAL PHYSICS, 2018
ARCHIVE  
ABSTRACT We study the robustness and asymptotic stability of the unique equilibrium for the Winfree model on a general network under the effect of small time-delay. Time-delay is a ubiquitous mechanism in classical and quantum many-body systems, and it is due to the finite speed of communication. In this paper, we further investigate the robustness of the equilibrium under the effects of small time-delay and general network topology. For this, we present several sufficient frameworks formulated in terms of the network topology, coupling strength, time-delay, and initial configuration. In the proposed framework, we present a positively invariant arc which contains the unique equilibrium independent of strength of time-delay. By using energy estimates, we show that the unique equilibrium in the invariant arc is asymptotically stable. We also provide several numerical simulations and compare them with analytical results. Published by AIP Publishing.
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