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Analysis of epidemic and synchronization processes in complex networks

Grant number: 16/23827-6
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): August 01, 2017
Effective date (End): July 31, 2022
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal researcher:Francisco Aparecido Rodrigues
Grantee:Thomas Kaue Dal Maso Peron
Home Institution: Instituto de Ciências Matemáticas e de Computação (ICMC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry, AP.CEPID
Associated scholarship(s):18/15589-3 - Dynamical Processes on Ecological Networks, BE.EP.PD


The field we know today as Network Science had its beginning in the analysis of large database setswith the initial goal in mapping the connectivity pattern of real complex systems. The great finding ofthe early works in this context was the discovery that systems of different nature exhibited highly nontrivialstructural patterns, such as the emergence of scale-free properties and hierarchical organizations ofits elements. These results were then followed by countless works focused in the development and formalizationof metrics devoted to the structural characterization of these systems. However, in many cases, thetopological description of a given system does not provide all resources to thoroughly assess the system'sevolution. Once the structure has been quantified, one still needs to establish the connection between thenetwork topology and dynamical processes taking place on it. Unfortunately, progress in this directionturned out to be much more slower than in the structural characterization of networks. Indeed, analyticalresults concerning dynamical processes in these structures are hard, or even impossible, to be obtained;especially in topologies that present characteristics found in real networks. It is in this context that lies themotivation of this project, namely to study dynamical processes in complex networks that exhibit topologiesakin to the ones observed in real systems. To this end, we will study epidemic and synchronizationprocesses considering random graph models that generate networks that incorporate structural propertiesobserved empirically. With this approach, we aim at quantifying the influence of topological patternsusually neglected on the dynamics of real complex systems. Finally, the analysis developed firstly for randommodels will be later applied to the study of real-world networks whose functioning is described bythe dynamical processes under investigation in the project, such as power-grid networks in the context ofsynchronization, and social networks under the influence of endemic and rumour spreading processes.

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PERON, THOMAS; DE RESENDE, BRUNO MESSIAS F.; RODRIGUES, FRANCISCO A.; COSTA, LUCIANO DA F.; MENDEZ-BERMUDEZ, J. A. Spacing ratio characterization of the spectra of directed random networks. Physical Review E, v. 102, n. 6 DEC 10 2020. Web of Science Citations: 2.
COMIN, CESAR H.; PERON, THOMAS; SILVA, FILIPI N.; AMANCIO, DIEGO R.; RODRIGUES, FRANCISCO A.; COSTA, LUCIANO DA F. Complex systems: Features, similarity and connectivity. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, v. 861, p. 1-41, MAY 25 2020. Web of Science Citations: 0.
CIBA, MANUEL; BESTEL, ROBERT; NICK, CHRISTOPH; DE ARRUDA, GUILHERME FERRAZ; PERON, THOMAS; HENRIQUE, COMIN CESAR; COSTA, LUCIANO DA FONTOURA; RODRIGUES, FRANCISCO APARECIDO; THIELEMANN, CHRISTIANE. Comparison of Different Spike Train Synchrony Measures Regarding Their Robustness to Erroneous Data From Bicuculline-Induced Epileptiform Activity. NEURAL COMPUTATION, v. 32, n. 5, p. 887-911, MAY 2020. Web of Science Citations: 0.
PERON, THOMAS; EROGLU, DENIZ; RODRIGUES, FRANCISCO A.; MORENO, YAMIR. Collective dynamics of random Janus oscillator networks. PHYSICAL REVIEW RESEARCH, v. 2, n. 1 MAR 4 2020. Web of Science Citations: 0.
PERON, THOMAS; DE RESENDE, BRUNO MESSIAS F.; MATA, ANGELICA S.; RODRIGUES, FRANCISCO A.; MORENO, YAMIR. Onset of synchronization of Kuramoto oscillators in scale-free networks. Physical Review E, v. 100, n. 4 OCT 8 2019. Web of Science Citations: 0.
DAI, FULI; ZHOU, SHIJIE; PERON, THOMAS; LIN, WEI; JI, PENG. Interplay among inertia, time delay, and frustration on synchronization dynamics. Physical Review E, v. 98, n. 5 NOV 19 2018. Web of Science Citations: 0.
PERON, THOMAS K. D. M.; JI, PENG; KURTHS, JUERGEN; RODRIGUES, FRANCISCO A. Spectra of random networks in the weak clustering regime. EPL, v. 121, n. 6 MAR 2018. Web of Science Citations: 1.

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