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Determinants of collective failure in excitable networksBarać, Uroš ; Perc, Matjaž ; Gosak, Marko, 1982-We study collective failures in biologically realistic networks that consist of coupled excitable units. The networks have broad-scale degree distribution, high modularity, and small-world ... properties, while the excitable dynamics is determined by the paradigmatic FitzHugh–Nagumo model. We consider different coupling strengths, bifurcation distances, and various aging scenarios as potential culprits of collective failure. We find that for intermediate coupling strengths, the network remains globally active the longest if the high-degree nodes are first targets for inactivation. This agrees well with previously published results, which showed that oscillatory networks can be highly fragile to the targeted inactivation of low-degree nodes, especially under weak coupling. However, we also show that the most efficient strategy to enact collective failure does not only non-monotonically depend on the coupling strength, but it also depends on the distance from the bifurcation point to the oscillatory behavior of individual excitable units. Altogether, we provide a comprehensive account of determinants of collective failure in excitable networks, and we hope this will prove useful for better understanding breakdowns in systems that are subject to such dynamics.Source: Chaos. - ISSN 1054-1500 (Vol. 33, iss. 4, [article no.] 043120, 2023, 9 str.)Type of material - article, component partPublish date - 2023Language - englishCOBISS.SI-ID - 149413891
Author | Barać, Uroš ; Perc, Matjaž ; Gosak, Marko, 1982- |
Title | Determinants of collective failure in excitable networks |
Publication date | 2023-04-12 |
COBISS.SI-ID | 149413891 |
Publication version in repository | Unidentified |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Unidentified |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Celične in tkivne mreže | P3-0396-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Računsko intenzivni kompleksni sistemi | P1-0403-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Infrastrukturna dejavnost Univerze v Mariboru | I0-0029-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Analiza kolektivne celične aktivnosti v normalnih in diabetičnih pankreatičnih otočkih s principi večplastnih mrež | J3-3077-2021 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Fazni prehodi proti koordinaciji v večplastnih omrežjih | J1-2457-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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https://dk.um.si/IzpisGradiva.php?id=88144 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Barać, Uroš | 58401 |
Perc, Matjaž | 23428 |
Gosak, Marko, 1982- | 28405 |
Source: Personal bibliographies
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