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Uniform Stability and Uniform-in-Time Mean-Field Limit of the Thermodynamic Kuramoto Model
期刊文章

Uniform Stability and Uniform-in-Time Mean-Field Limit of the Thermodynamic Kuramoto Model

Seung-Yeal Ha, Myeongju Kang, Hansol Park, Tommaso RuggeriWoojoo Shim
Quarterly of Applied Mathematics, 卷.79(3), 頁碼.445-478
09/2021

摘要

kinetic equation mean-field limit synchronization The Kuramoto model thermodynamics uni-form stability Applied Mathematics
We consider the thermodynamic Kuramoto model proposed in [27]. For each oscillator in thermodynamic Kuramoto model, there is a coupling effect between the phase and the temperature field. For such a model, we study a uniform stability and uniform-in-time mean-field limit to the corresponding kinetic equation. For this, we first derive a uniform l p -stability of the thermodynamic Kuramoto model with respect to initial data by directly estimating the temporal evolution of l p -distance between two admissible solutions to the particle thermodynamic Kuramoto model. In a large-oscillator limit, the Vlasov type mean-field equation can be rigorously derived using the BBGKY hierarchy, uniform stability estimate, and particle-in-cell method. We construct unique global-in-time measure-valued solutions to the derived kinetic equation and also derive a uniform-in-time stability estimate and emergent estimates.

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