Articles producció científica> Enginyeria Informàtica i Matemàtiques

Abrupt transition in the structural formation of interconnected networks

  • Identification data

    Identifier: imarina:9285345
    Authors:
    Radicchi, FilippoArenas, Alex
    Abstract:
    Our world is linked by a complex mesh of networks through which information, people and goods flow. These networks are interdependent on each other, and present structural and dynamical features different from those observed in isolated networks. Although examples of such dissimilar properties are becoming more abundant - such as in diffusion, robustness and competition - it is not yet clear where these differences are rooted. Here we show that the process of building independent networks into an interconnected network of networks undergoes a structurally sharp transition as the interconnections are formed. Depending on the relative importance of inter- and intra- layer connections, we find that the entire interdependent system can be tuned between two regimes: in one regime, the various layers are structurally decoupled and they act as independent entities; in the other regime, network layers are indistinguishable and the whole system behaves as a single-level network. We analytically show that the transition between the two regimes is discontinuous even for finite-size networks. Thus, any real-world interconnected system is potentially at risk of abrupt changes in its structure, which may manifest new dynamical properties. © 2013 Macmillan Publishers Limited.
  • Others:

    Author, as appears in the article.: Radicchi, Filippo; Arenas, Alex
    Department: Enginyeria Informàtica i Matemàtiques
    URV's Author/s: Arenas Moreno, Alejandro
    Keywords: Structural formation Sharp transition Network layers Mesh networking Isolated networks Interdependent systems Interconnected network Dynamical properties Dynamical features Abrupt transition
    Abstract: Our world is linked by a complex mesh of networks through which information, people and goods flow. These networks are interdependent on each other, and present structural and dynamical features different from those observed in isolated networks. Although examples of such dissimilar properties are becoming more abundant - such as in diffusion, robustness and competition - it is not yet clear where these differences are rooted. Here we show that the process of building independent networks into an interconnected network of networks undergoes a structurally sharp transition as the interconnections are formed. Depending on the relative importance of inter- and intra- layer connections, we find that the entire interdependent system can be tuned between two regimes: in one regime, the various layers are structurally decoupled and they act as independent entities; in the other regime, network layers are indistinguishable and the whole system behaves as a single-level network. We analytically show that the transition between the two regimes is discontinuous even for finite-size networks. Thus, any real-world interconnected system is potentially at risk of abrupt changes in its structure, which may manifest new dynamical properties. © 2013 Macmillan Publishers Limited.
    Thematic Areas: Physics, multidisciplinary Physics and astronomy (miscellaneous) Physics and astronomy (all) Interdisciplinar General physics and astronomy Biotecnología Biochemical research methods Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: alexandre.arenas@urv.cat
    Author identifier: 0000-0003-0937-0334
    Record's date: 2024-09-28
    Papper version: info:eu-repo/semantics/submittedVersion
    Link to the original source: https://www.nature.com/articles/nphys2761
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Nature Physics. 9 (11): 717-720
    APA: Radicchi, Filippo; Arenas, Alex (2013). Abrupt transition in the structural formation of interconnected networks. Nature Physics, 9(11), 717-720. DOI: 10.1038/nphys2761
    Article's DOI: 10.1038/nphys2761
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2013
    Publication Type: Journal Publications
  • Keywords:

    Biochemical Research Methods,Physics and Astronomy (Miscellaneous),Physics, Multidisciplinary
    Structural formation
    Sharp transition
    Network layers
    Mesh networking
    Isolated networks
    Interdependent systems
    Interconnected network
    Dynamical properties
    Dynamical features
    Abrupt transition
    Physics, multidisciplinary
    Physics and astronomy (miscellaneous)
    Physics and astronomy (all)
    Interdisciplinar
    General physics and astronomy
    Biotecnología
    Biochemical research methods
    Astronomia / física
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