Universität zu Köln

Kaiser, Franz ORCID: 0000-0002-7089-2249, Latora, Vito ORCID: 0000-0002-0984-8038 and Witthaut, Dirk ORCID: 0000-0002-3623-5341 (2021). Network isolators inhibit failure spreading in complex networks. Nat. Commun., 12 (1). BERLIN: NATURE PORTFOLIO. ISSN 2041-1723

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Abstract

In our daily lives, we rely on the proper functioning of supply networks, from power grids to water transmission systems. A single failure in these critical infrastructures can lead to a complete collapse through a cascading failure mechanism. Counteracting strategies are thus heavily sought after. In this article, we introduce a general framework to analyse the spreading of failures in complex networks and demostrate that not only decreasing but also increasing the connectivity of the network can be an effective method to contain damages. We rigorously prove the existence of certain subgraphs, called network isolators, that can completely inhibit any failure spreading, and we show how to create such isolators in synthetic and real-world networks. The addition of selected links can thus prevent large scale outages as demonstrated for power transmission grids. A single damage can lead to a complete collapse of supply networks due to a cascading failure mechanism. Kaiser et al. show that by adding new connections network isolators can be created, that can inhibit failure spreading relevant for power grids and water transmission systems.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kaiser, Franz UNSPECIFIED orcid.org/0000-0002-7089-2249 UNSPECIFIED Latora, Vito UNSPECIFIED orcid.org/0000-0002-0984-8038 UNSPECIFIED Witthaut, Dirk UNSPECIFIED orcid.org/0000-0002-3623-5341 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-596173
DOI:	10.1038/s41467-021-23292-9
Journal or Publication Title:	Nat. Commun.
Volume:	12
Number:	1
Date:	2021
Publisher:	NATURE PORTFOLIO
Place of Publication:	BERLIN
ISSN:	2041-1723
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ELECTRICITY; COMMUNITIES; TOLERANCE; SCALE; MODEL Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59617