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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Performance measures after perturbations in the presence of inertia

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Autor(es):
Ye, Jiachen [1, 2, 3, 4] ; Peron, Thomas [5] ; Lin, Wei [1, 2, 3, 4] ; Kurths, Juergen [6, 7, 8] ; Ji, Peng [1, 2, 3, 4]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Fudan Univ, Inst Sci & Technol Brain Inspired Intelligence, Shanghai 200433 - Peoples R China
[2] Fudan Univ, Minist Educ, LCNBI, Shanghai 200433 - Peoples R China
[3] Fudan Univ, Minist Educ, LMNS, Shanghai 200433 - Peoples R China
[4] Fudan Univ, Res Inst Intelligent & Complex Syst, Shanghai 200433 - Peoples R China
[5] Univ Sao Paulo, Inst Math & Comp Sci, BR-13566590 Sao Carlos, SP - Brazil
[6] Potsdam Inst Climate Impact Res PIK, D-14473 Potsdam - Germany
[7] Humboldt Univ, Dept Phys, D-12489 Berlin - Germany
[8] Saratov NG Chernyshevskii State Univ, Saratov 410012 - Russia
Número total de Afiliações: 8
Tipo de documento: Artigo Científico
Fonte: COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION; v. 97, JUN 2021.
Citações Web of Science: 0
Resumo

Synchronization phenomena occur among populations of interacting elements and is of great importance for the functionality of several types of complex systems. Much effort has been devoted to understanding its emergence especially on the Kuramoto model, and the research now on coupled oscillators takes advantage of the recent theory of the interplay between intrinsic dynamics and topological structures. However, the underlying mecha-nism of the interplay-induced synchronization of the model with inertia remains elusive. Here we investigate the dynamical-structural interplay in the Kuramoto model with iner-tia from two perspectives; namely, one for stationary states, and the other for transition processes of the system. For stationary states, we decompose the concept of alignment function as a combination of the Laplacian matrix and the natural frequency, and use the Gershgorin disk theorem to quantify the ensemble average of alignment functions induced by a variety of structural modifications. For transition processes, we derive the solution of the performance metric, especially with respect to the inertia term. Additionally, we show that, when the natural frequency is tangent to the dominant eigenvector of the Laplacian matrix, both the ensemble average of the alignment functions and the performance metric approach optimization (minimization). Finally, we perform numerical simulations to sup-port our theoretical analysis. (c) 2021 Published by Elsevier B.V. (AU)

Processo FAPESP: 16/23827-6 - Análise de processos epidêmicos e de sincronização em redes complexas
Beneficiário:Thomas Kaue Dal Maso Peron
Linha de fomento: Bolsas no Brasil - Pós-Doutorado