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Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X

   
 
 

 

Uniform stability and uniform-in-time mean-field limit of the thermodynamic Kuramoto model


Authors: Seung-Yeal Ha, Myeongju Kang, Hansol Park, Tommaso Ruggeri and Woojoo Shim
Journal: Quart. Appl. Math. 79 (2021), 445-478
MSC (2020): Primary 70F99; Secondary 92B25
DOI: https://doi.org/10.1090/qam/1588
Published electronically: February 22, 2021
MathSciNet review: 4288593
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Abstract | References | Similar Articles | Additional Information

Abstract: We consider the thermodynamic Kuramoto model proposed in \cite{H-P-R-S}. 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 $\ell ^p$-stability of the thermodynamic Kuramoto model with respect to initial data by directly estimating the temporal evolution of $\ell ^p$-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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Additional Information

Seung-Yeal Ha
Affiliation: Department of Mathematical Sciences and Research Institute of Mathematics, Seoul National University, Seoul 08826; and Korea Institute for Advanced Study, Hoegiro 85, 02455, Seoul, Republic of Korea
MR Author ID: 684438
Email: syha@snu.ac.kr

Myeongju Kang
Affiliation: Department of Mathematical Sciences, Seoul National University, Seoul 08826, Republic of Korea
ORCID: 0000-0002-5081-442X
Email: bear0117@snu.ac.kr

Hansol Park
Affiliation: Department of Mathematical Sciences, Seoul National University, Seoul 08826, Republic of Korea
MR Author ID: 1356829
ORCID: 0000-0002-1075-6472
Email: hansol960612@snu.ac.kr

Tommaso Ruggeri
Affiliation: Department of Mathematics and Alma Mater Research Center on Applied Mathematics AM$^2$, University of Bologna, Italy
MR Author ID: 151655
ORCID: 0000-0002-7588-2074
Email: tommaso.ruggeri@unibo.it

Woojoo Shim
Affiliation: The Research Institute of Basic Sciences, Seoul National University, Seoul 08826, Republic of Korea
MR Author ID: 1337213
ORCID: 0000-0003-3051-9420
Email: cosmo.shim@gmail.com

Keywords: The Kuramoto model, mean-field limit, synchronization, thermodynamics, uniform stability, kinetic equation
Received by editor(s): October 25, 2020
Received by editor(s) in revised form: January 23, 2021
Published electronically: February 22, 2021
Additional Notes: The work of the first author was supported by National Research Foundation of Korea (NRF-2020R1A2C3A01003881), the work of the second author was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP)(2016K2A9A2A13003815), the work of the third author was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2019R1I1A1A01059585), and the work of the fourth author was supported National Group of Mathematical Physics GNFM-INdAM.
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